Getting drunk and sitting down in front of a computer to write anonymous insults... That is a indeed a sad way of being drunk.

I can envisage getting drunk and picking a quarrel with someone via the net, and writing things I'd regret later. But a quarrel has to be you-and-someone-else. An anonymous quarrel? That just doesn't make sense to me. It is analogous to poison pen letters, pathology rather than communication.