Twitter still rules the real-time news/information area. Communities like facebook/irc/forums are too closed for broadcasts like that. It has its purpose and it does it well. But you can also not use products you don't like.

I suspect some Twitter hate as he spent time very close to it in working there. This is expected, you work on a product you might see more of the bad than the good. Game developers don't always enjoy the game because they see what they had to cut, directors can't watch a movie without pointing out flaws, security forces can't walk into a building without checking for safety, or you worked at Olive Garden and might never want that ever, ever again.

When you work in it, you really get to know something, for better or worse.