So I have never really used twitter much and I don't think I even signed up for it ever. But I want to double check something -- is it the case now, as this post suggests, that if you follow somebody, you do not see their posts? Isn't that the main purpose for the follow function?

Why would you do that? Why would you have a follow function and break it? And what else do you show people? I mean if your user follows someone, then it is what they want to see, why wouldn't you show them what they want to see?