If you know who they are, and can provide evidence, you are urged in the strongest possible terms to report them to the Titans.
There is no other recourse against cheaters. The Magistrates have no tools to detect, confirm, or punish cheaters. Complaining about cheaters in-game, on the forum, on IRC, or anywhere else will get exactly nothing done. There is one and only one way to deal with cheaters, and that is to report them to the Titans.
Dustole reported interacting with new accounts that seemed to fit the same pattern as the locked accounts.