Hi Haunebu, good to have you involved again and thanks for the kind words.

Sure, a username is just fine.  I just wanted to give the option for email as well but you're free to just provide username and I'll use that to get in touch.  For the record all emails are deleted at the end of this anyway, but if you're worried then the best bet is just providing username for sure.

Good luck and thanks again for your contribution.