As we know the levels of all strange weapons are hidden to us in-game and in trading, but we can see them on backpack sites including here. Botkillers are the main stranges with varying levels. Therefore if a bot has multiple of the same botkiller, say carbon sniper, will the bot know the correct one to select that a customer is buying? This question is important if one is trying to sell collector and special leveled botkillers via this site and doesn't want his customers getting the wrong level. It is also a concern if someone else who uses the same bot deposits the same botkiller. If his botkiller is sold or he decides to withdraw it, will I have to worry about him accidentally getting my special leveled and more valuable botkiller?

AFAIK TF2 items are identified by item id here, so the bot should identify it correctly.

That's good to hear, thanks :).