After having my share of fairly bad interactions with Obelix for a while on NW, I had the occasion to sit with him on TS and ended-up talking with him through several weeks where he appeared to me like a completely balanced person. After a while, however, he resumed his threats against other players for some very silly stuff and I decided to cut all ties with him again, explaining to him why although he could act as a completely sane person on several occasions, the actions he decided to use on the daily against people who 'wronged' him were simply unacceptable.
All of that to tell you that although he can act like a normal person if he wants to, he will not hesitate to use any threats at his disposal whenever it suits him. I have seen a lot of cretins and sick people in this game, in NW especially, and I must say Obelix probably is among the highest-rated of those who heavily contribute to damaging the community he wants to be a part of. Between him and Rempica on native, I probably never had such a bad experience with someone who simply got nothing positive to bring to this community other than his so-called 'skill'. He did it in NW, and it won't take long before he does it on Bannerlord too.
I will likely not be involved in Bannelord competitive scene for a while, if not never. I could have just decided to happily let you handle him and let you witness 'his art' from your own eyes. But if you want to put a basic standard of human decency and ethics in your tournaments, Obelix should be permanently banned from all competitions onward. He will lie to you, he will threaten you if you don't side with him and he will act against you and your tournaments or players if he doesn't get what he wants. That's pretty much a given and simply ignoring this post would certainly be easier to do than taking a stand against it. But if you start a multiplayer scene by accepting virtual terror as a normal way of behaving, that's basically equal to shooting yourself with a bullet in the foot.
It's your time to act now.