TBH, sometimes support will give wrong answers to reports (and, like you said, its really easy to photoshop messages...). I know at one point they said that you can't kick people except for the stated reasons, no exceptions, but the official stance is different now ("playstyle differences" is a valid reason, even though its not listed, for example).
As bad as some make it, there's no reason to say that selling houses/plots is against ToS. Harassing people over it can be. But just trying to sell it? You'd have to makechanges to the MB too, with people selling things worth a few gil for millions.
And no, I'm not part of it. If you think the price is too high, don't buy. People will complain no matter what, even if all houses were bought "legitimately"
