Edward Jursek, don't fret so much. What I've done is take these high/regular/low prices to determine what an item is actually worth to people. For example, I just bought a new, in bag, with tags, sleeping bag, that had been in gear swap a month or so. i flagged, and got emailed once the item dropped to a sellable price. However, it was my feeling that given the item is new, not opened or used, and that it costs a lot new, the seller had every right to try to get as close to the new price as he could. Just as I could not buy it at that price. Worked out well, got a new wm summerlite for 270. Not bad. And that's in my opinion exactly what it's actually worth.
Some gear makers, as people noted here, don't have inventory, you have to wait to get it, weeks often, and are super specialized. Those carry a premium. One person here mentioned the photon he tried to sell for a long time, why that never sold is beyond me, those are very cool tents. So who knows what makes people decide things have value at x price or not. I got a tarptent rainbow here, used, older model, for about 45 less than new, you can't find them for less, that's in my opinion more than its actual value, but there is no supply of used ones, for good reason, they are cool tents.
I just sold two items, I priced them based on the value the current bpl buyers seem to put on them, the prices were the same roughly as what I had bought them for here, weren't used additionally, so it's safe to say that is their actual value to people. Those both sold within hours. Someone a few days later tried selling one of the same items for at first 30 more, and it did nothing, had to lower the price. So it's really to your advantage as a seller to not worry about those few extra dollars which make zero difference to anyone's life, and to just sell it at the valued price, stuff sold like that almost always goes right away.
So rather than worry about people posting stuff at high prices, just watch it, you'll learn what this group of people actually values the stuff at, ie, what it is worth today. That's also going to e seasonal of course, I'm sure you can get a premium on spring/summer gear if you sell it closer to summer.
I recent bought an item I thought was a bit high priced, but objectively, I saved 20 over new price, plus state tax, and the seller had to pay a fair amount to ship it, was heavy, so he really didn't get that much out of it, and I saved some over new, I don't see the problem.
Other items retain a real premium, titanium pots, for good reason, they work fine no matter how used.
Now where I agree about totally unrealistic expectations among sellers here is when they sell damaged items that are heavily used, you know, oh, there's just a small burn hole, or a line of stitching has come off, stains, etc... easy to fix. If it's easy to fix, they should fix it, if they didn't fix it, it's because it is a pain in fact to fix it, and the price should reflect that. That's the single place I really have to wonder about some of the sellers expecations. But that's the minority. One person I was talking to about a puffy item warned me specifically to be very careful here about buying used puffies, not worn a few times then sold, but truly used. The same would go I assume for other gear, once it's gotten real use, the price should really reflect that, it's no longer a question of the out the door markup being removed, then it's a question of the true value of the product being diminished by wear.
But overall my experience on these gear forums has been great, with one exception, but that guy was just a slacker stoner as far as I'm concerned, no evil intentions, just a total and utter flake. And even then I finally got my stuff from him.
Re the bumps, I really wish those would be allowed, they don't hurt anyone, and all the person is doing is trying to find a buyer, once the stuff is off the first page the eyeballs plummet, I have no objection to that, bpl already gets people to sign up so they can sell, why add more difficulties, a bump doesn't hurt anyone. Sometimes you can get carried away by modding, it's not worth it. By the way, I became a member not so much to sell, but specifically because I found the buying experiences here on the whole so nice, and the sellers so honest, as long as you filter out the people selling junk at too high a price, ie, damaged goods, that it was just refreshing, worth at least one membership, even though I read tons of websites and get most of my information etc for free.