With all the current problems at eBay, I think this one is being overlooked but is one of the biggest, and is also affecting sales. It could be argued that this issue invokes legal issues that eBay could be made to answer for:
eBay is manipulating sold price data, this is causing resellers to pay too much when at auction's or thrift stores, and causing sellers to list items at too high of a price point. This is a MAJOR problem because it will have a ripple effect through the entire industry, an industry that is already on very shaky ground.
For a long time now, eBay has hidden Best Offer Prices, causing sellers and buyers to play detective to try and figure out what an item actually sold for. This could be accomplished by searching sold items and stacking them high to low to see where the price with a line through it fell, this would give you an idea of what price it actually sold for.
Now eBay has taken it to the extreme, and shows the items sold price, as the full original price, EVEN if it was sold on-sale or through a message offer.
The other day I watched a friend's item that sold, it was a 200.00 watch, my friend had a 30% off sale and the watch sold for 140.00, when I searched my friends sold items, it showed as 140.00 for hours, but then it changed back to 200.00 and has no indication that it was sold at a reduced price. If someone researched that same watch today they would assume it was sold at 200, causing any buying or selling decisions to be based on false data.
I have not researched if Worthpoint/Terapeak will show the 140 or the 200. If these 3rd party historic price providers show the false numbers then their databases are all corrupted. If they do show the correct prices, it proves that eBay is corrupt!