They screenshot merely "proposed" Notes that come from them, and crop it to make it look like a real, approved CM.
Then they post it and spam replies with it. Very scummy. But we figured out what they were doing.
most people won't see notes that are only "suggested"... so it is mostly wasted effort on their part... it's still a pain in the ass if they are spamming the notes system...
The X community today, especially verified accounts, is heavily anti-woke biased, so community notes in general is just fine, if anything to biased toward conservative/anti-woke views, in terms of what actually gets "accepted" and shown to everyone.