I'm not sure what it has to do with my original comment that it's hard for Overstreet to accurately list Baker prices...but the answer to your question is no and it's not really a reverse of the scenario I'm talking about.
I'm referring to the distortion of pricing that occurs when people who have no interest in a particular item interject themselves into an auction only so they can turn around immediately and jack the prices up on true fans who they just outbid.
To put it another way: Imagine you and I were at an in-person live comic book auction, and we were both rabid and ready to go to the limit for a 9.2 copy of Giant Comics Editions #12. (Dream big!)
Someone on the sidelines hears us talking and realizes that you and I don't care what it costs to land the book. That person came to bid on some Superman comics, but now they smell money and decide to outbid both of us on the GCE 12, and they have the finances to outlast both of us.
After the end of the auction, as I'm walking to my car, the winning bidder runs up to me in the parking lot and offers me the book for $1500 more than he just paid.
Maybe some people would be good with that. I would not.
And again, back to the subject that started this Baker thread sidebar: Likely being the only sale that year (or ever of course) for GCE 12 in such high grade, how should Overstreet list that issue & grade in the guide? The price at which you or I would have outlasted the other? The price the flipper outbid us to? Or the price after his mark-up?
According to GoCollect, 78 9.8 copies of Amazing Spider-Man #300 have sold on eBay in the past 12 months. With that sales volume, even after some dealer hanky-panky, a reliable average price can be determined. Some of these Baker books, however, might sell once every 2 years or more, making it very hard to arrive at a reliable price for the guide. Between that and people who are manipulating the system at times, we may never see accurate Baker pricing in Overstreet.