Another good way is, you can respond but don’t respond to the person. Respond to the recipient of the snark, or to anybody else really. Then you can go ahead and dunk on the person, everybody laughs at them, and they don’t get to reply, ESPECIALLY if they’re a bot.
It's considered bad etiquette on FR to talk about someone without pinging them.
I'm not going to play that game. Reminds me too much of a middle school gaggle of kids.
If I've got something to say to someone, I'll say it, but I'm not going to get in slap fights, and keep going around and around with the same person.