With

http://www.tf2outpost.com/trade/9576687 - Selling for 2.33!

http://www.tf2outpost.com/trade/9599110 - Selling for 2.66!

http://www.tf2outpost.com/trade/9388675 - Sold for 2.66-3 ref in items

Fence

http://www.tf2outpost.com/trade/9502062 - Rejected 3 ref

Against

http://www.tf2outpost.com/trade/9581542 - Willing buyer at 3 ref

http://www.tf2outpost.com/trade/9034979 - Plenty of offers over 3.33 ref

http://www.tf2outpost.com/trade/9112276 - Offers of 3.33+ in items

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http://backpack.tf/vote/id/5152ab624bd7b87f2e000008 - More info from this link

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Because Hugh Jazz said so.