Classifieds at the time of posting this suggestion.

Unsolds are based on how long the listing has been up; Listing has been up 5 days and item been in the sellers inventory for 8 days? It has been unsold for 5 days.

The age of the listing(s) are shown in the screenshots rather than the last bump - Unsolds and item histories are presented in chronological order according to the screenshot(s).

x2 for sale at 5.33 Refined - http://i.imgur.com/uG9fkD9.png

Unsold for 6 days http://backpack.tf/item/406588878

Unsold for 1 day http://backpack.tf/item/1035125173

-

x2 for sale at 5.66 Refined - http://i.imgur.com/hAkqRyf.png

Unsold for 1 day http://backpack.tf/item/520764333

Unsold for 6 days http://backpack.tf/item/489378899

Outpost sellers below 5.66 Refined.

http://www.tf2outpost.com/trade/28337468 - 4.66 Refined - Unsold for 1 week - Countered by buyers > http://i.imgur.com/B2Yodl9.png

http://www.tf2outpost.com/trade/28348037 - 5.33 Refined - Unsold for 4 days.

Outpost unsolds at 5.66 Refined.

http://www.tf2outpost.com/trade/28359991 - 5.66 Refined - Young.

http://www.tf2outpost.com/trade/28356312 - 5.66 Refined - Unsold for 1 day.

http://www.tf2outpost.com/trade/28330973 - 5.66 Refined - Unsold for 1 week.

I am excluding all trades on Outpost that haven't been bumped for 1 day or more.