1 year outdated.

https://backpack.tf/profiles/76561198011321852#!/compare/1497139200/1497225600

https://backpack.tf/profiles/76561198180704953#!/compare/1497225600/1497398400

Sold for a Green Confetti Detective Noir(1 year outdated as well, guess I'll start a Noir train). According to the second compare link the buyer added 10 keys pure, so definitely ridiculous overpay and an outlier.

Note: the buyer in this trade appears to be a collector. He has had several Detective Noirs in his backpack history.

https://backpack.tf/profiles/76561198152813004#!/compare/1498176000/1498262400

Not actually a sale, but according to the item history it appears the collector sold his hat to a quickbuyer, then bought a Circling Heart Noir. Unusable because he bought/sold so quickly.

https://backpack.tf/profiles/76561198180704953#!/compare/1501891200/1501977600

Same collector as last time, same deal as last time. This guy has had two separate TF Logo Noirs at two separate times and he's quicksold them both. Keys were used to buy a Haunted Ghosts Noir. Once again, unusable.

https://backpack.tf/profiles/76561198180704953#!/compare/1501113600/1501200000

Same guy. My guess is he owned sold a Green Energy Noir and some of his strange weapons for keys, then used the keys to buy the TF Logo Noir and some Aussies. Also unusable.

https://backpack.tf/profiles/76561198068077643#!/compare/1500940800/1501113600

Cash/CSGO. Unusable.

https://backpack.tf/profiles/76561198180704953#!/compare/1501113600/1501200000

https://backpack.tf/profiles/76561198199729741#!/compare/1501977600/1502064000

Sold in a day for a Peace Sign Crocleather Slouch(20 keys, indate) and one key. Actually sold while making this suggestion. Probably not a quicksell because it was overpay.

http://m.imgur.com/1tfWMKc - Capping at 18 keys B/O

All other sales are quicksells by bots.