Is this still a thing? Haven't people accepted by now that Ukyo most probably is living the life on Cyprus together with Mr. Brewster and a cocktail in his hand?
You know... normal scammers vanish at some point. Ukyo is still available and speaking if you want. Check out IRC.
I've got to agree with Harmon, yeah it may be untypical, but have you considered that this is just part of the plan. It is used to let people keep their hopes up, let some of them even side with you. Some will even start to defend you. This is closely related to Stockholm Syndrome. It effectively decreases the number of people who will potentially try to use legal action. People aren't under the impression of having been scammed, so it is easier for them to just write it off as an accident.