I don't think theymos will remove those accounts unless it is absolutely necessary. and those accounts probably got permabanned already so their IPs should have some units of evil allocated into them. they'll have to pay a small fee if they want to make a new account.
Those account owners will never pay anything. Its not worth for them. They created these accounts with lists of proxies anyway. The forum cant identify when they come back and try to create accounts. These softwares can create different user agents and what you can think of. Its impossible to block except you implement some rule like "no profile linke until out of newbie cage" or so.