True group buy's are very hard to have! They were hard when i used to work at a store, i could only imagine how hard they are when dealing with people around the world.
With the constant telling people not to make stupid choses. That is something i would be left in the dark about on here being new. When it get's to that point with someone i guess it is time to be a little bit more direct with them. That doesn't mean being rude though.
Maybe give warnings or banning them if they don't get the hint?
I tell you what my head was spinning with all the searches i did on here thru this week. Granted i have question's that may be considered dumb but i chose to ask those question's in private to someone that comes off as a person that is willing to help me.
