Keep on seeing people complaining about how twitter has been a failure for organizing. I don't see it. Plenty of things have been organized on twitter- the TERF movement, reactionaries, and a ton of other groups use twitter all the time and quite effectively.
The real problem being talked around whenever people talk about twitter being 'bad for organizing' is that most contemporary leftists- anarchists, communists, liberals, whatever- aren't interested in using twitter as a tool to organize.
It's not really the tool's fault if you don't use it.