Follow other users

I was talking to my friend recently, giving them my ratings of movies, and they were like "where do you keep all these ratings", and I mentioned the IMDB app. They said awesome they wanted to make an account and follow mine to view my ratings and watchlist and we realized you cant do that on IMDB. I guess that mechanism is available to Letterboxd users but I don't want to transfer all my ratings  (700+) to that new website. I think IMDB would benefit form more user to user interaction capabilities. You don't need like a newsfeed or anything like that but if people already make accounts, why not allow people to follow each other?