In team fortress 2, players can receive loot boxes/in game items during normal gameplay. The loot boxes can be unlocked by purchasing a "key" for ~$2.50, to receive cosmetic items. Many of the cosmetic items can sell for a lot, on the scale of hundreds or even thousands of dollars.
The cosmetic items from loot boxes (as well as those attained from normal play) can then be sold in online markets (such as scrap.tf or marketplace.tf) for real-world currency.
This is probably what the primary goal of the bots is. Ironically, the source of TF2's profit for Valve (microtransactions for cosmetics) is also a partial cause for the bot crisis.
The cosmetic items from loot boxes (as well as those attained from normal play) can then be sold in online markets (such as scrap.tf or marketplace.tf) for real-world currency.
This is probably what the primary goal of the bots is. Ironically, the source of TF2's profit for Valve (microtransactions for cosmetics) is also a partial cause for the bot crisis.