He's looking for a max combat one, there's 23 skills, I'm sure there's shit he can get one. Let's say he pays you $100 for yours, he trains it, increases its value to $200, has stuff on it worth another $200. You decide to fuck him over, sure he might be able to chargeback his money, but you'll get some free training and your account back. The buyer is taking the bigger risk here. Of course there is also the risk of him getting the account banned and charging back his money. If I'm buying an account and seller won't do PP then no deal, equal risks should be taken.