Quote Originally Posted by Jlw86 View Post
I should have called this earlier when I read this topic the first time. When I thought to myself, what would you put after Moses that would make a naughty word? Exodus certainly felt like it fit the bill, with “sex” being sandwiched in the middle. I dunno if that is restricted or if it checks for simple combined words between names like that, just going off what someone else in topic said.
That definitely sounds like it would have been the issue. People have had similar issues in the past where they post their unaccepted name and you can see there's a blocked word split across the two halves of the name.

If you have the in-game profanity filter switched on you'll also see it blocks things split across multiple words, sometimes even blocking bits of system messages, probably to stop people from s p a c i n g i t o u t to bypass the filter.