Rating labels & guidelines

A plain numeric scale makes voting featureless and inconsistent.

Some people use 7 as "good", others as "decent".
Some people use 5 as the reference point, others use 0 or 1.
Some people never use 1 & 10, others use them casually, and yet others use only that.
Series are consistently rated higher than movies.

Even for oneself it is hard to remember what one uses those numbers for and vote consistently over time, moods and topics.

Labeling the steps would help normalize votes.
After much thoughts and reading I suggest :

• 0: trash
  Where it belongs.
  Should not exist, and as matter of fact does not.
  
  
• 1: awful / hateful / insignificant / abhorrent
  Now this is torture.
  They had to fail everything on purpose, right ?
  
  
• 2: bad
  Hurts to watch.
  May have discussions around "But why ?!"
  
  
• 3: boring / unpleasant / dull
  Poorly done enough to stop watching.
  Has some negative reputation.
  
  
• 4: faulty / deficient / flawed / lacking
  Some aspect leaves to be desired, and the rest does not redeem it.
  Regret watching it.
  
  
• 5: so-so / average / passable
  Standard, run-of-the-mill with nothing special to it.
  Forgettable.
  
  
• 6: noteworthy / decent
  Some aspect catches attention, but the rest is not up to par.
  Quickly forgotten.
  
  
• 7: interesting / pleasing / enjoyable
  Well done enough to sit back and enjoy.
  Has some following.
  
  
• 8: good
  Keeps attention all along.
  Remembered and talked about.
  
  
• 9: awesome / wonderful / brilliant / excellent
  Keeps glued to the couch.
  Goes the extra mile, leaves a lengthy imprint on pop culture.
  
  
• 10: masterpiece / gem / monument / perfect
  Nothing to change, leaves pensive and dreamy.
  Only a handful of these, becomes part of lasting human culture.

The scale is centered around 5 as the origin point, as it seems more intuitive to rate as plus/minus from some expected average than an arbitrary 0 or 1 that is in practice never met.

The labels form symmetrical pairs around 5.

The scale is non-linear, to bring nuance to the bulk of productions massed around (or defining) some "standard".
Some people might prefer to remove 6 & 4.