This might sound weird, but I really don't understand why "... rated ..." and "... added to a collection" actions appear in followers feed. I think it would be nice to add 2 things:
First, as follower, I want option to hide those from my feed.
Second, as a creator, I want option to hide those from my followers feed. I don't understand how they would be interested when I rate a game, or when I add a game to my collection.
Also, there's a way to filter feed. But it only shows one type at time (new projects / posts / collections/ ratings / my own activity), and I would like to see both "new projects" and "posts".