What is a troll? | Golf Monthly

It's the lack of face to face contact that makes forums the sometimes hostile place they are, if you were sat opposite the person you were "debating" with you'd be much less likely to come out with the snide or insulting comments.

We're all guilty to a greater or lesser degree, many's the time I've posted something and then realised I've behaved like a complete knob.
Even more often I've written what I thought was a clever riposte, only to read it again and have second thoughts and not actually post it.