Since you are a newbie it would be best to use escrow anyway, even without the negative. So if you use escrow then there should be no problems with you having a negative from me (assuming of course your intentions are good).
lol... if you think what you write is true please tell theymos that we should neg-rate all newbies...
seriously...i know here are much scams. i hate scammers...
but neg rating newbies just because of that name (as stated.. the only possible accounts which could be impersonated are newbies too) is just abusing the trust system.
btw.. your negrating has nothing to do with the fact that he is trying to sell accounts like you do?

My negative trust has to do with the fact that his name is very similar to another account seller who has been around for a while without major incidents (and as a result people would potentially trust enough to send bitcoin first to him).
I think it is fair to say that his username is closely sounding enough to ACCTseller that someone could potentially mistake him for it.
Like I said before if his intentions are to simply sell his account and then leave then he can create another username that does not sound similar to someone somewhat trusted.
There are plenty of account sellers out there and they do not have any negatives from me with the exception of those who have either sold hacked accounts or those who engage in something unethical.