Erm where does the 5.5 buds come from?

http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet/

(1) We no longer allow suggestions based only on b/os. There must be at least 1 sale in every suggestion. Just like we don't like to use offers as the only proof to raise the value on an item, we don't like using b/os alone to drop the value as this has frequently caused bp.tf to lead the market with consecutive suggestions every 1-2 weeks dropping the hat (see Miami Wraith). We also have run into the problem of using these prices off b/os to price other hats.

Saw this? http://backpack.tf/vote/id/53772c9a4cd7b8e55d8b4602