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Sat, Feb 9, 2013 8:26 PM

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The porn filter for lists does not work

This is a problem we've been kicking around on the IMDB boards over a number of threads on a couple of forums and we have had some input from staff which has helped us narrow down where the problem is occurring. Unfortunately, all/most of these threads have been deleted (although not, I should add, because of those threads), so I can't direct you to them and there was a tonne of evidence there, but I have (hopefully) boiled it down to its basics in this thread. It can be distilled further though:

The porn filter for lists doesn't work.

That is: the system IMDB use to remove lists with porn films on them, from a film's "related list" section is not working consistently - it includes lists with porn on them and excludes lists that don't have them.

I say "porn" because, even though it says adult films on the search results, it actually filters not by the "Adult" genre but by an unseen (to the normal user) setting that is applied on a case-by-case basis. So Baise Moi isn't listed as porn, despite the fact that it contains unsimulated sex - which seems sensible, if the system actually worked, which it doesn't.

I'll present enough evidence below to give the gist of the problem:

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Porn films have related lists

The simplest demonstration of this is looking at the lists attached to high profile porn films, like, for example, Deep Throat:

http://www.imdb.com/lists/tt0068468

On that page are some of the lists we've previously flagged up, as some of them contain a large number of porn films, as should be obvious from titles like "AVN's The 101 Greatest Adult Tapes Of All Time":

http://www.imdb.com/lists/tt0068468

Deep Throat is not an isolated case, just the first one I thought of. I've previously provided all sorts of examples but a quick skim through that film's "People who liked this also liked..." section should provide plenty of other examples - the only films flagged as porn on IMDB without lists are the most obscure ones.

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Lists without porn on them are still flagged

As far as I'm aware, there is supposed to be a process that is supposed to run that checks for porn on a list and if it finds it it flags this up in the lists database entry and its visibility on IMDB is reduced (by excluding it from the "related lists" section). We seen from the above that this isn't working on lists with porn in it, but what about lists without porn?

The typical helpdesk reply to previous contact about our concerns is:

Lists are not featured when they include adult titles. Do you have any examples of lists with no adult titles that are currently not appearing in 'related lists' pages for titles featured in the list?

Thank you.

----
Regards,
Leonard
The IMDb Help Desk


We've presented dozens of lists on previous threads that have had their visibility removed but don't contain porn, which include quite a few of mine:

http://www.imdb.com/list/MUTisOps8S0/
http://www.imdb.com/list/IRI4DX5uI2o/
http://www.imdb.com/list/QUzo9z00B8E/
http://www.imdb.com/list/K7Ze5wOM6Uw/[
http://www.imdb.com/list/2O2mC476sGQ/
http://www.imdb.com/list/aGPRbCPAYbc/

All of them have had porn films on them (although some aren't porn - see below) which were removed once I realised they'd lost their visibility, but this hasn't removed the flag that they contain porn. So the lists are still excluded.

I've only give examples of mine, but people have provided other examples from their lists and I have found a couple of others (but I don't know their history and, also those examples were lost when the threads were deleted). The above is just a selection

--
Non-porn films are flagged as porn

There are also films that aren't porn that appear to be flagged as porn, which make it easy to accidentally add one to a list (if you have any doubts, just read the reviews):

Anatomia Extinction (I have been leaving this to watch but can give it a view now to check):
http://www.imdb.com/title/tt0153161/

Lunch Meat (1987) - not even listed as an Adult film:
http://www.imdb.com/title/tt0093452/

And seems to have been confused with the porn film Lunch Meat (2000), which is also, rightly, flagged as being porn:
http://www.imdb.com/title/tt0304360/

It is the 1987 film which is reducing the visibility of this list of mine:
http://www.imdb.com/list/MUTisOps8S0/

--
Other problems

If you take a list with reduced visibility and save it off as a new list, then this list is now visible.

It also seems that if you add porn to a private list and then make it public, then that list is visible (I assume this is how the lists of porn remain visible). This and the previous point suggest I could game the system if I wanted to, but I'd rather get this resolved so the system you have in place actually work.

I understand the principle you are trying to put in place (to stop kids from accidentally clicking through to a porn film) but they can still get there through the search results (enabling "adult" films) or through filmographies of actors who crossover, like Ron Jeremy:
http://www.imdb.com/name/nm0000465/

===
Solutions

Some possibly better solutions:

* Check the list for porn when it is saved and adjust the visibility accordingly - this seems to be the way it is working to reduce visibility (as mentioned above, I've seen the list's visibility get reduced within 15 minutes, which suggests this is the way it works) but, if so, it is clearly not working consistently (or all lists with porn films on them wouldn't be visible) and isn't checking if a flagged list now contains no porn. However, this doesn't address the problems of being able to browse through to porn from filmographies.

* Filter lists and filmographies to hide the porn film entries, in the same way the search system does and flag this up. This would at least stop children from accidentally stumbling across porn, although flagging it up in the search as being "adult titles/names" might give people the wrong impression that it filters out all films in the adult genre (as I thought until an admin corrected me) and would automatically turn it off (as I did initially). It'd be better to call it what it is, to avoid confusion.

* Along similar lines, you can filter out the lists with porn on them if people haven't enabled porn films in their search results and add them to the related lists page if people have opted in. After all, if they are looking for porn films, they will be interested in lists with porn on them. It is similar to the previous point, but is probably quicker and easier to implement, but it still doesn't address the problem of being able to browse through from filmographies. However, I suspect that might require a larger discussion about filtering out porn and then a while to implement all the changes, so at the worst this could be a stop-gap measure until then.

======
Hope that helps - I have more but that should give a decent outline to the problem. If you want me to clarify anything or I've messed up somewhere. I have more information for all the above points but throwing in too much might make it (more?) difficult to digest. Brevity is king, after all.

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