I know what happened with him, however I do not see the relevance between him and removing escrow.ms from DT1.
As he is arrested, it's clear that any further deals from the account will be from a hacker, or maybe the cops for all we know. So any ratings and feedback(as he's in dt1) would effect the users. Theymos should remove him from dt1 and lock his account as the likelihood of him returning to the forum is pretty slim to none.