Do you know that some (actually quite the number of) people prefer animals to their fellow humans. In cRPG, people prefer killing bots. Why? Because while killing bots, humans cooperate. They are mostly nice to each other and can have a nice chat. Bots don't hate your because you've killed them, most of them don't play like utter cunts, they are your ideal enemy (something we lost years ago when noobies stopped coming to this mod in large quantities).
And XP is good. But XP can be good in other mods now, thanks to x2 multi award for every win.