There are many many great sellers here on SW. No offense intended (just a general comment), but if someone only wants stamps in near flawless condition, then one really needs to either go to a brick and mortar store, buy only certified stamps, or subscribe to an approval service. Even then, still expect an occasional mistake. But I don't think that was your issue -- rather, you were not happy that the flaws were not adequately described, or even misdescribed.
To be honest, if I sold retail, and a collector told me he expected all "obvious" stamp flaws to be described, then I would likely charge him a markedly higher price. It's really a very very labor intensive thing to do and not as easy as it sounds.
While it is DEFINITELY wrong for a seller to deliberately misdescribe a stamp (e.g., mnh when it's actually hinged) or ignorantly misdescribe a stamp (e.g., write mnh for all their stamps when in fact they weren't even examined for hinging), I honestly cannot expect a seller to sit there and write out every flaw -- or maybe I'm a product of low expectations? I simply factor in the fact that some percentage of stamps will be misdescribed when I make my final bid. Also, read the feedback ratings and messages -- they are actually quite helpful. Even some of my favorite sellers will occasionally miss a major flaw in their descriptions. It's actually easier to miss a flaw than it seems.
That being said, I think I've only dumped 4 sellers out of about 60+ because a significant part of the purchase was either missing, misdescribed, or the seller was knowingly making their listings ambiguous/misleading after fair warning from me.
That percentage (~7%), is actually not much different from my experience with brick and mortar dealers and show dealers, and yet they are noticeably more expensive than what I am paying here on SW. In fact, I might even argue that they are even more lax in their notations of flaws because they know you'll simply skip over anything misdescribed upon examination (which is in fact, what I do) -- they don't have to worry about the inconvenience of handling returns by mail.
I have to admit I was surprised by my great experience here on SW, because I usually don't like to buy stamps I've never handled unless it is from a very established dealer or auction house. This is why I have shifted more than half of my stamp purchases here to SW. And, I can tell you with certainty that there is a much much greater percentage of bad sellers over at the "dark side" than there are here.
Enjoy your stamps and SW!