I had been nice and had a 25% discount posted on all of my gacha resale vendors since May. I never removed it like I originally planned. Having my kindness abused, one item being marked up 2900%, and after having my policy in place for years, just ticks me off. I shouldn't be surprised that there are still massive jerks in SL, especially amongst gacha folks.
The items I sell are those I have pulled from machines myself, not items I have obtained from buying what other people pull. I only sell my extra items to try and get back some of what I spent. SOME. That is why I price at or below pull price for commons.