Your account do you sell is high price i think no one buy that account because you can buy high potencial acc and sr. member for 0.1 btc... try to lower you price maybe they can buy your account....
Something like 0.05-0.06 is reasonable for this account guessing your post quality and that it has low activity, only something with 170 activity and very good post quality would go for the price you are currently asking for