It may be an example of a phenomenon that occurs in auction sales, primarily in online listings, but also in the floor at sales too.
Let's say the seller or AH lists a coin like this that obviously is not very attractive to many collectors.
On one hand, you have the bargain hunters. They are drawn to the lot/sale because they believe that the coin's problems will drive bidders away, allowing them to score the coin below market.
On another hand, you have the gamblers and flippers. They have a similar mind state as the bargain hunters but think that either 1) the coin is actually better than the pictures - blind faith in the
TPG slab grade - or 2) they can do something to it to improve its eye appeal, such as fake toning; they will then bid on it with the goal of either getting lucky or flipping it after doctoring it.
When you get these bidders into a room, it causes a coin to generate unexpectedly high levels of interest and activity. This SLD would undoubtedly be attractive to all of the above - bargain hunters who hope the cleaning and surfaces will scare people off, allowing them to score a type coin for below market; gamblers who are betting that PCGS's grade is more accurate and/or the photos are worse than what they see; and unethical flippers who would use tricks to either doctor the coin or mislead gullible buyers about its condition.
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