Have you seen the reports for them, linked to each other.
Read below, regarding their case.Link:
https://bitcointalk.org/index.php?topic=2544574.msg55605221#msg55605221
In this case, I conclude yes, they are the same person.
Again the problem here, having multiple accounts is legal, having multiple accounts, to cheat, violate forum rules etc, that's what is not allowed.In this case, if they are wrong from the start they will be punished according to their mistake.
Question:Did they do anything wrong, if yes, show me the evidence here accurately, I will mark them.