ability to remove certain players showing up while browsing auctions to purchase. Similar to your Whitelist option where you do not undercut certain players. Reason: avoid buying items of known bots/scammers as help prevent database skewing. Example: seller sadgechan putting up fadeleaf for 30s but a buy out of 711g on a classic server. This allows people to 1, get scammed with a TSM bug out error when trying to purchasing lowest cost (but exact opposite happens) and 2, it starts to skew your database for crafting and what is actual average/market price. If the seller posts multiple of this item in the above scenario this further screws TSM application use... which makes us go back to doing calculations by hand (yuck).
I've seen those scammers but never experienced this bug. Have you got latest version of TSM? Still a good idea though.