Wheeling and Dealing on Head-Fi?

Hey folks, am I the only one that's noticing something odd in the "for sale" forums - it seems that there are a certain number of persons who have engaged in a large number of sales, and somehow, I just get the feeling they're not so much hobbyists as using the forum to conduct business on the side.  Check out some of the folks with number like 15 deals who now "WTB" pricey items, sometimes in quantity, and then, almost as quickly, turn them around and resell them.   While there are of course legit folks who just want to try out different gear, I just can't help but get the feeling that others - typically with very low post totals on head-fi, but not in every case - are abusing the process.   It sucks when you're browsing the for sale ads and you see posts saying "WTB any quantity" or similar.   

I'm just wondering, are the mods looking into this?  Or is this purely my imagination?

I've seen, at least once (I was thinking more than once, but I may be wrong) someone wanting to buy (if I can recall correctly) a vintage RS-1 but adding "any quantity" to the ad.  But what got me to start this thread is just that I see quite often a few relatively low number posters who have 10+ or whatever transactions - and often the highest end stuff, but very few other posts at all on head-fi.   Just buy and sell (with one or two exceptions).  I realize this is difficult to prove, and maybe I'm just being overly suspicious, but I just have a feeling not all these folks are simply trying out the gear.

well, maybe if this increases awareness a little bit ... hopefully the mods will keep an eye on the for sale forums for this kind of stuff...