Are you really trying to say that you've only had one account on betcoin.ag? And that your ip wasn't blocked due to multiple accounts? I don't have the time to dig up all the evidence....Just suffice it to say, you seriously lack credibility.
Creating multiple accounts when your accounts have been banned in some way in order to use the chat feature is not "multi accounting". Multi accounting refers to making multiple accounts in order to play in the same tournament or cash game in order to take advantage of the other players. If Twitchy has been doing this, that IS a problem and if you could show evidence of that it would go a long way to damage his credibility.
True. Multi-accounting has ruined lucrative careers....Look up the stoxtrader (Nick Grudzian)/Leatherass (Dusty Schmitt) incident. It's very serious. Dusty wasn't even directly involved, yet his career took a huge hit. Having multiple accounts on a single poker site is against a poker sites terms and conditions, regardless if the bad actor admits to collusion, short stacking, rat-holing, softplay, or multiple entry because it is hard to prove intent. It was sufficient enough to ruin Dusty's career that multiple accounts were established, even though he wasn't proven to be the culprit; Nick was the Culprit.
It is the responsibility of the site operator to ban multiple accounts to protect the integrity of the game.
This will lead you to the consensus in the poker community on the practice of multi-accounting:
http://www.internettexasholdem.com/poker-forum/general-board/nick-quotstoxtraderquot-grudzian-resigns-over-cheating-61589.html There's also a link to the 2plus2 thread that detailed the incident.