She probably sees the number of fediverse participants that banned her as a drop in the bucket (not that it isn't, the fediverse is huge) and takes advantage of the fact that the communities that are supposed to have banned her are technically still functional to her. She made a vent way back where she said it couldn't have been a true ban due to this and because the TOS was never violated.
The lawsuit though is (supposedly) by a different person who says the two of them maintain the motives for the bans to be false. The upvotes in Karmacourt (which is otherwise mostly a dead community) signify they don't put it past the fediverse.
I read the first sentence and think that maybe they were doing it to lowkey show that the non-fediverse world (according to them) sees through the fediverse's claims and motives as dishonest, not so much to sue the fediverse. In other words, a reverse-Streisand, similar to running for office and backing out for the publicity.
If true, the upvotes would suggest their plan is working.