In particular, we don't know that this someone is even mightybearingball, since the message only says KWH is returning on this date; it says nothing whatsoever about mightybearingball, who (for all anyone knows) could just be reposting a signed message that the real KWH previously posted elsewhere. @mightybearingball, it might be good idea to post a signed message actually asserting that KWH is now going by the username mightybearingball (assuming this is, in fact, the case).