There's actually an anecdote there. When I was a teenager, about 15, I did a week's work experience in a local law firm and I had to fill out a daily diary for my school. One particular entry said that a young female clerk and I had spent the day "soliciting". I didn't know I'd said something wrong, but the lawyers there thought it was hilarious. My teachers didn't.
Would you even be able to use John Castle since it's already in use? What about Jean Château, Johnny Acropolis, or Jamal Alhambra?
I'm sure they could add a full stop or something to the old account name since it's that of a banned member.
One of these: Tasvir Storm Rucker henryhill phantomofthenet trinity Harmon Bokai Uncle Albert Dendroica
I'm not your buddy, guy. They took our jobs Oh my god, they killed Kenny Operation Human Shield PC Principal
or try Man In The John Castle ETA- This is why I respect you. You don't rest on your laurels. You're always seeking to rebrand and reinvent yourself. Bully for you!