I know some of you aren't going to care, but allow me to drop a dose of reality.
1. Every "good" thread will get a bit off track and see an influx of non-regulars around hyped releases. To complain about this is to complain that the sun rose.
2. You are not going to fully shut the resellers out no matter what you do. This is for several reasons.
A. They're likely "better" at this than you are. This is what they do. You're competing with a full timer as a part timer.
B. Half the people in the hobby are "resellers" now. There are more "resellers" than there were total people in the hobby five years ago, let alone, ten or more. There's just a numbers game at work.
C. NT is a fun place to be, but its doesn't determine anything in this hobby. There are plenty of other places to get info and keeping info off this board won't do anything to ensure "the resellers" don't get it. ...They likely have the info and everything before you do.
So, just accept it or move on. There are plenty of things to complain about, but if you're still complaining about resellers nowadays, you might as well be still be complaining about the DH in American League baseball. You don't have to like it, but complaining about it is a waste of everbody's time.