Then it’s some kind of abusive behavior that is not sealioning. It’s not either sealioning or nothing at all. There are many words in the dictionary and many different ways for people to act.
Also, when you create a Twitter thread, assuming you don’t protect your tweets, it is not your “home” any more than a thread you create on this board is your home. You seriously need to get a clue if you don’t understand that. It’s even more ridiculous on Twitter, which is very close to unmoderated. No one has a right to tweet publicly and get only positive responses. If you don’t like that, don’t use Twitter.
I have seen people cite posts of his that seem to be defending violence and things like that, which is totally beyond the pale. I don’t know if that means he is not being honest. You would have to cite an example if you want me to be more specific than that.
But again, there is no indication that the sea lion in the comic is being dishonest.