>>723961617
It's a trade-up contact. For a long time you have been able to exchange 5 skins of the same rarity to get one random skin of the next rarity. This crash happened because now for the first time ever you can trade 5 of the highest rarity skins (red) in exchange for a knife.

Even the most worthless dogshit $2 red skins have 15x'd in value while knife prices are plummeting into the floor