Kamikaze troll

A trolling technique in which a troll makes a final attempt at pissing people off by revealing their identity as a troll so people know that their valuable time has been wasted arguing online with a bridge dweller.

John: Nobody is reacting to my stupid comments online, they just keep explaining things calmly and providing links with sources, what do I do?
Rob: How long have you been arguing?
John: Almost two hours!
Rob: Perfect, it's time to unleash the kamikaze troll!