Well probably you are asking yourself why? because the buyers already offer for it :

http://www.tf2outpost.com/trade/10181245 - offers : 3 /3,3 ref

http://www.tf2outpost.com/trade/9784015 -same offers ( 2 weeks old)

http://www.tf2outpost.com/trade/10046630 - sells for high price from bp tf-3,6 ref it means (no offer, no buyers about aqua for 6 days)

http://www.tf2outpost.com/trade/10181411 - sells for 3,6 no offers/buyers

http://www.tf2outpost.com/trade/10178660 -sells for 3,6 no offers/buyers

http://www.tf2outpost.com/trade/10142774 - ts flops for 1k+ 3 ref (a good price with paint but no buyers)

http://www.tf2outpost.com/trade/10184731 - FINALLY A SELLER FOR 3,2 REF (JUST 2 HOURS AND IT HAS 2 BUYERS)

I think you have enough proofs to downgrade this price.You have proofs to unsold at 3,6 and buyers, sellers for 3-3,3 is a easy price