He's said he doesn't mean to appear arrogant, and it's just a product of the language barrier.
But the kind of crap he just added to his Wiki profile seems to indicate he thinks he's better than everyone else.
He posted a thread about a general problem, refused to give any specific details, became angry and sanctimonious when asked what the problem was, and then added a few lines to his wiki profile about how other wiki members didn't respect fellow member edits. He, of course, does.
If he doesn't have the maturity to spit out the problem, then he's just creating drama on purpose. That leads to devoicing or temp-bans.
Whether or not he's had a tough time recently, he needs to shape up or ship out.