In the only tag he has, negative, the reference link brings us to a thread of the repugnant Bitcoin SV's many alt accounts. However, I don't see Facebook Libra's name in the list of alts in that thread (unless I'm mistaken), so I think it's more of an assumption on the part of the tagger.
If you look closely, you can easily spot the same writing style and behavior of this account. I was initially skeptical that this account was not a well-known troll, but my doubts were dispelled when I pointed it out in another thread.
Russians have a saying "don't touch shit, it won't stink" and this works very well with this user. Anyone who ever "steps on his tail" will be attacked by him. The only difference is that someone is very nervous about it, and others just ignore him.
Look at the Russian section, there are many people there who once somehow hurt his "little vanity" and how they were then attacked by this troll.
One of his traits is the creation of self-moderated topics and regular editing of his posts. Now you see one thing, but later he will fix everything differently.
In fact, he has many accounts that we don't know about yet. Apparently, he is either a mentally ill invalid who has nothing to do except the forum or just an ordinary loser embittered at the whole world, which, however, is the same thing. In his case, the "ignore" button works well.