Hmm - I'm not sure if this comment was meant seriously but any authority that you might be worried about would almost certainly be able to find out who you are if they wished to.

The tax department probably wouldn't care less and certainly the local one here wouldn't care what the web site was that you were claiming tax deductions against, so long as you were making income from it.

People frequently make the mistake of assuming that they are anonymous on the internet when nothing could be further from the truth (unless you are taking extreme measures to cloak who you are).

The only reason to use a pseudonym is if you'd rather not have employers / friends / co-workers / stalkers etc be able to find out too much about you online...

Not serious, Big Gav. Believe me, I've been around the web enough to see how many people get dooced for their anonymous blogs.
:-)

I didn't know there was a word for it.

I do occasionally wonder where the dividing line is so I've always avoided referring to any client I've worked for...