The worst part about Projectfork

As you probably know by now, Projectfork 2.1 is in development and I have all sorts of new features and enhancements planned. Having all this is new stuff is certainly nice, but what I really want to achieve is a "better" Projectfork in terms of usability. So I might have to turn a few things into another direction, tweak features here and there to get it right. And this is where I ask you: What is the worst part about Projectfork?

Please take a moment to place your vote and leave an additional comment about what you dislike about the current system. I am prepared for heavy (productive) criticism :-)