Trust has nothing to do with what's allowed by the forum rules. Trust is strictly about trust. If one user thinks that a user participating in account trading is not trustworthy, then it is the former's prerogative to exercise his/her privilege of handing a Trust Rating reflecting his/her thoughts to the latter's account. Essentially, if another user deems you or your account suspicious, then he/she has a right to voice it out. In the end, that's all it is -- a user's voice. If you're conducting business in a legitimate way, then no one's "voice", not even a DT member's, should have any effect on your business. As long as the Trust Rating is not being abused, then no one has any say over having a rating removed other than the one who gave the rating (and Theymos, but that's not the point). As far as I can see, there is nothing unreasonable about negging someone for participating in account trading, as I am also of the opinion that there is no legitimate reason to buy accounts on a public discussion board. (And no, trying to earn BTC from posting is not a legitimate reason.)