We have started building this feature. We hope that it will be available by Spring.
An error occurred while saving the commentAnonymous commented
I don't care much about the buddy feature. I've told people about movielens because I want them to get recommendations and be excited about machine learning, not because I want to see them in my friends list.
But if you do introduce the feature, I would find a "movies both of you will enjoy" for two or even more people incredibly useful. As far as I know that would also make movielens pretty unique as a kind of movie night planner.