Not necessarily. He'll likely just use it to bump up the price then contact the other highest bidders and offer them it if the price is reasonable. I would leave negative if there was reasonable evidence for the behaviour.
As for proof he openly admitted to me that he bumped the price higher with the account he is selling.
!!! WARNING: This user is a newbie. If you are expecting a message from a more veteran member, then this is an imposter !!!
http://www.bctalkaccountpricer.info/?token=gngb44tcThis is the estimator it has some positive trust in untrusted feedback.
I bumped up the price with my account so I'm sorry for that. So I'm ignoring the bid and assumed you to take the previous bid
I won't really give a big fuss about it since the amount is only small but as for honesty, I think this action is an obvious attempt of fraud and shouldn't be encouraged.