viri??

Did some smart alec really 'casually' throw that into a comment???

That's got to be one of the more annoying habits to surface in recent times! Virus is an English word, the accepted plural is viruses, not viri.

I wonder if this wannabe clever clogs uses the correct accustive, dative, genitive etc declensions of words with Ancient Greek/Latin origin? Or if he/she/it always (as I suspect, not that it would make it any worse if they didn't) uses the nominative form?

People who use this and other non-standard plurals out of what can only be sheer vanity should have their IPs permanently blocked from the entire interweb. (fora instead of forums must be the most common, but I've also seen people use the nominative singular erratum even when ablative case would have been applicable in the original language! Can you believe it?)