Twitter trolls

A boxer gets insulted on Twitter and responds by finding out his insulter's name and address, driving there (or pretending to) and threatening to beat him up. Hooray right? This is now the approved technique of responding to unsolicited abuse on Twitter.

So, presumably, when Caitlin Moran fantasised on Twitter about stabbing Toby Young in the face he should have gone round to her house, banged on the door and threatened to hit her? And we'd all have thought that was really funny?