Account trades and other digital goods  is always risky to trade since they can be claimed back by the original owners.Escrows won't help much if that happens.Yes,the big 10 list doesn't guarantee they'd be online all the time or even escrow such risky sales.Meanwhile,you can use other alternatives on basis of their trust and forum reputation.The problem is ,no trusted members are willing to take a risk so I doubt it will be of any help suggesting an escrow for you.Message him https://bitcointalk.org/index.php?action=profile;u=290195 ,he might be willing to!