Look, I hate Twitter. I've tried using it 4 different times over the past decade and it never stuck with me.

For everyone else though, it's like digital crack. It was the place to be for a while, even though it's users would chafe over minor changes. And of course, there was the original Cambrian explosion of microblogging movies and blind dates and garage sales and haircuts et. al... mostly replaced today by politics and related vitriol.

It's 100% the fact that there is no meaningful competitor, exacerbated by people being lazy and distrustful of other private platforms. And good - these people should be wary, and Cory Doctorow should be on his soapbox telling people how to live in a post-social-media world rather than riling them up to go yell at clouds online.