Snark spotted in Wales

To 'snark' is to make nasty rumours and comments, often anonymously, and pretending to be witty and wise at the same time. It is usually found in the USA and most often applied to celebs and politicians there. A piece in the Guardian says it is spreading to the UK, and it is also being used against individuals.  A quick look at Welsh blogs suggests it has already arrived. Plaid blogs seem especially prone to nasty carping and sniping.  

The Guardian article says politics is being damaged by this petty and personal approach. I agree.