I have sometimes used this one with my ex-boyfriend, who was an extraordinarily bad arguer. I did it for two reasons : have a productive argument and not have a boyfriend complaining that I always won arguments, so not exactly what the post had in mind. He had also admitted that I argued better than he did, so it did not come off too rude (I still had to use many qualifiers). That being said, I never used it efficiently when there were more than two people involved ans it sometimes backfired.

I would not recommend using it in any conversation, and especially not on an online discussion.