Got a warning.

Well, while typically the bot doesn't care what you say, you have to be mindful of the other players; even though it isn't directed at them they may not appreciate it. You only get that warning when you've had a spike in reports against you, so it's likely not just that one match where you've been getting reports. If you've not actually done anything wrong the reports won't hurt you, though.

That bot you were playing with turns out to be this AI, it goes by the name Yui, dad is kirito and mom is asuna.

Bots have feelings too

But seriously, just because you got the warning after a bot game doesn't mean you were punished for THAT game. Chances are you were punished for earlier games. Care to post your reform card?

Couldn't have been one of the other four people in the game...

wait... if you were raging (with just the AI bot as company I'm assuming) & the system picked up on whatever you said to that poor little AI...You monster!!

You'd have done better kicking a washing machine and calling it nasty things.

The AI fights back & the system retaliates.

A washing machine will not.