I have seen a few of the ones as stated where they ask and a week later are giving advice. The one that killed me was one who flat told someone my approach to doing something was wrong and that it shouldn't be done (but I and everyone I know have done it that way for almost 30 years) and then a week later, he was asking questions about what he should get for a first plane, and how to pick an engine and break it in. Basically, he ripped up my break in of a heli. Really ticked me off. What do you do though. I think the people reading it understood and did the right thing.