Why is he banned on twitter?
There's been a lot relatively random banning's on Twitter since the takeover. Initially a lot of users unbanned, but since then a significant amount banned. In reality the censorship remains relatively high, just significantly different. Rather than censorship targeting far-right it has targeted far-left, as well other new reasons such as sharing live location data of others without consent (doxxing), hacked materials, etc.
If I had to guess it wouldn't be due to his religious believes, as these are generally well tolerated on twitter. Maybe worth pointing out he had an account on a mastodon instance called "
Bitcoin Hackers" (now closed). So if he shared any hacked materials from there on twitter then that would be an account suspension. That's speculation I know, but other users have been banned recently for sharing hacked materials.
He's on Nostr I believe, so if you wanted to find out the reason for his suspension you might find it from him there.