Yeah, the old multiple handle debate is one that we seem to revive every few months, here.
I know in the past, we have had some really solid members both in favor of, and against, using multiple handles.
I believe at one point 2 or 3 years ago that Millard himself supported using multiple handles - not for devious purposes, of course - but rather for the purposes of creating separation between a source and its customer, in the event that an unhappy customer wanted to post negative feedback without fear of retaliation (ie, if Rockbody123 ordered from a source, Rockbody123 would order using a second handle like Badboy55 so that if Rockbody123 then came back and posted bloods showing bad results, then the source wouldn't have Rockbody123's personal info to potentially silence Rockbody123 with, since the product was ordered under the handle Badboy55).
The whole IM situation is a little different however. He didn't really try to hide his identity, the latest round of new handles was simply done bc his other handles were banned. He made it clear who he was under each new handle.
But we certainly have busted out some guys playing games with various handles.