It always makes me laugh when someone says "I don't care and your opinion means nothing" when they post in a public forum.
That aside, I doubt you will get an answer to your question. The odds a user in this forum was forced to name change is small. The odds of them being forced to do it twice are beyond tiny.
Human nature, anyone else in your boat with a forced name change, probable picked a non-offensive name rather than risk an acct being banned rather than forced twice.
Will Ninatic Ban you next time or Double Force Name Change is your question, I just doubt anyone is going to have any experience to answer it.