What's funny is that they've posted about one of their written works being posted on one of those... novel sites without their permission. It wasn't stolen, per se, since their name was still credited as author, but it was just hosted there without their consent (and they often have a written statement on their bios that they do not want their works to be reposted elsewhere... the irony and hypocrisy...).
But obviously, they didn't want to be caught and that was their way to deflect their actions--make up a fake person to take the blame, look like the hero (claiming to have helped the twitter artist muiskeeter (the artist that they stole from) confront the 'art thief' after muiskeeter confronted them about it. Unbelievable, really...), and also be the victim at the same time, since they were being rightfully blamed as said art thief.
Screenshotting the actual 'art moots' post might be an extra boost, but all their posts are littered with evidence (I've also just screenshot a lot of their threads with their currently changed username (AGAIN--two in one day it seems) to seawater. And as I'm typing this, I've also noticed they've changed their avatar). Unless they decide to actually make up an entirely new account, they would be sacrificing the views, likes, and follows on the novels that they've already posted on Tapas. And seeing how often they've promoted their works (particularly Purple Shades of Blood), even under a different username, it would be clear who they were.