Not taking sides with anyone, I'm just trying to break down some of the information I know so far.
(1) Having multiple accounts is not a violation & not against the rules. I saw it on an unofficial rules thread, you can see the quote below:
18. Having multiple accounts and account sales are allowed, but account sales are discouraged.
(2) Some users have an alt account. Here is the proof:
Back to the first point that this is not a violation & breaking the rules.
(3) I don't think you have enough evidence for this accusation, so it's just a waste of your time. Hopefully you can get some clarity from all this bros!