What is an unusual bot?

An unusual bot is a bot that operates on backpack.tf where it buys and sells unusual quicksells  for pure.

How can I trade with this bot?

It is actually quite simple! 1) You can directly add the bot and type !sell [item] or !buy [item] if you wish to buy that item. For example: !sell Orbiting Fire Outdoorsman or !buy Orbiting Fire OutdoorsmanAfter that the bot will send you an offer itself. Alternatively, you can send an offer to the bot yourself, just add the items you want from the bot and add the necessary amount of pure! (please double-check each trade, as trades are not refundable for any reason. 

Where can I see what the bot is selling and buying?

You can see what the bot is currently trading here.