This person still doesn't "speak" the way the poster "wrote". In the end, I don't quite care whether he's the same guy. His anti-sede posts were enough for me.
Right, but if you look closely enough, they weren't actually anti-sede posts, but were attacking all Traditional Catholics, and it culminated in a statement that unless you go to at least the Motu Mass, you're outside the Church. See, this guy puts all Traditoinal Catholics, including some at the right in the Novus Ordo, into what he calls the sedevacantist "spectrum". So that would explain how his attack on SVism was really an attack on all Traditional Catholics. His thinking lines of perfectly. Odds are very small that it's not the same guy. Between the obvious similarity between JJoseph and "Just Joseph" and the nearly identical mindset of attacking all Trads while using the word "sedevacantist", he's the guy.