From the post:

The answer is somewhat obvious, they do it for attention, they love seeing themselves in articles, they could care less about people, deep down inside they don't give a fsck about BART, they just want to go to protests with their masks and be on the news, so they can scream from their basements to their moms that they made the news! They jump on any possible chance they get to make headlines. Do you honestly think anonymous cares about BART... well of course they don't, why else would they release tons of personal information on innocent users who they are fighting for? Yeah... what? I don't understand this, but I don't seem to be the only one.