We're talking about buying and selling of forum accounts, and trying to figure out where people stand on the issue.

Initially, I assumed that account dealing was allowed to go on because there is no way to stop it.

Now, it appears that many here think it's not a necessary evil but a good thing, so figuring out how to stop it is a non issue.
We should concentrate on finding new ways to encourage it.
Quickseller is already doing his best

In addition to the enforcement issue: From time to time people have asked me whether they could sell their accounts or use them as collateral because they have an emergency need for money or have come on hard times. I'm not going to tell them they can't do this. It's your account and you can do what you want with it. I find it pretty distasteful (it's like selling your identity), but the act of selling your account does not itself hurt anyone else, and in fact scams via account sales are very rare.