Both of the sellers are looking for "backpack.tf prices"

http://forums.backpack.tf/index.php?/topic/36705-guide-for-non-unusual-suggestions/#entry398289

#3 Please don't use trades of people "selling for bp.tf price" or "selling for bp price +/- x amount" as primary proof in a suggestion. These are poorly advertised sales that require the buyer to do additional work to figure out an item price. This usually means they will have a harder time selling, so these aren't the best trades to use to figure out item values. Use them as supportive proof but don't use these alone to define your range.