I'll admit, the proof's a bit weird but one's thing for sure. This doesn't go for less than 1.33 anymore. Only two pages of sellers and half a page of buyers.

Sellers:

http://www.tf2outpost.com/trade/10838499 1 add of 3 ref, one add for 4 ref (troll offer?)

http://www.tf2outpost.com/trade/11531510 two offers for 1.33 in one day

http://www.tf2outpost.com/trade/8376681 added for 2 ref

http://www.tf2outpost.com/trade/11579057 1.33 offer and added in 14 hours

http://www.tf2outpost.com/trade/11381690 2 ref offer

http://www.tf2outpost.com/trade/10516581 many adds for 1.33

http://www.tf2outpost.com/trade/11530990 added for upper backpack.tf price (1.33) in one day

http://www.tf2outpost.com/trade/11524149 1.33 offer

Buyers: All buyers were either young or lowballers, here are the young ones, repeat they are YOUNG

http://www.tf2outpost.com/trade/11577712 unsold for lower end of bp.tf price (1 ref), 15 hours

http://www.tf2outpost.com/trade/11578437 no offers at 1.33, 14 hours

http://www.tf2outpost.com/trade/11582559 no offers at 1 ref, 14 hours

http://www.tf2outpost.com/trade/11569809 no offers at 1 ref, 20 hours

So if you consider the 2 and 3 ref offers outliers which there is a high possibility than the price is 1.33 flat.

Counter proof is welcome; we're here to discuss