A player who does not vote or act in time may be killed for being idle. It spoils the game for the others, so the bot keeps count.
See your count
/myidles shows your idle kills in the last 24 hours. Group admins can check a player with /getidles, and many groups remove players who idle often.
Avoid it
Keep the bot's private chat where you can see it, and only join a game when you have time to finish it.