Just checked these cards I bought via Best Offer:
11/4/2017 $56.00 7 263293949547 eBay cookiemonster501 Best Offer 27663581
10/7/2017 $34.00 8 362103254674 eBay psagradedcards.com Best Offer 24266161
10/7/2017 $15.00 1 302431553632 eBay dlemon01 Best Offer 20408951
They have the correct sale price. Maybe there's just a delay involved in retrieving the Best Offer prices.
Just looked up some others and it looks like they've removed pricing data for PSA/DNA autographed cards, rather than just noting that they're autographed. I would prefer to see the autographed cards listed with a note saying they're auto rather than deleting the sales history of those cards.