I personally like a buyer asking questions, because I do it myself as well. When I do post on the buy and sell, I always make sure I state that they are free to ask questions via pm. It also develops somewhat of a connection/relationship between both parties. Heck, i've had quite a good laugh at few folks that were inquiring and such. I guess it all depends on how we communicate and build rapport.
MODT - tu fui ego eris