The idea of an everyone-can-talk-to-everyone social network is initially appealing. You can write (and there were) thousands of articles about twitter extolling the virtues of the "internet community" or "the conversation" and "personal brands." It was all very 1995 internet enthusiasm with a new coat of paint. Then everyone tried it, and it turns out nobody wants to hear from everybody.

Trolls/abuse/whatever aren't the problem. They're the most extreme manifestation of the real problem: everyone wants to broadcast themselves to as many people as possible but nobody actually wants to listen to anyone but a subset of the people they've already decided to hear from.

But twitter can't restructure as an RSS reader for worthless thoughts (and links to worthwhile thoughts) for those with short attention spans. Maybe they can clamp down on abuse, it might give the flash in the pan a few more years of life.