This bot will add you when you joined one of the TF2 "Let's Play …" groups!
This bot will send you the invitiation when someone uses !callplayers on the servers.

Let's Play WOBRE Classic
Let's Play Slender Fortress
Let's Play Fort Wars
Let's Play Freak Fortress
Let's Play Deathrun
Let's Play Stop That Tank!
Let's Play Mann vs. Machine - Wobre Tours


Leave the group and remove the bot if you don't want to be part of the Let's Players anymore.