"Nowadays we have people instead of topics. I have nothing against people, but maybe, if I follow a great software architect, I'd like to hear what he's got to say about software, not about other shits."

That's so true. I want to follow some people on Twitter because sometimes they tweet very useful things, but the amount of "noise"/tweets I don't care about is too high. Tons of people put very good info on Twitter because is quick and easy compared to writing a blog post.