Because (I assume) 'Baboonery' is a pseudonym. I have adopted this practice (affectation?) recently after I read that Norman Tebbitt, a hero of mine, does the same on his blog. It is intended as a mild protest against on-line anonymity, which I do not like very much, particularly in a local forum where we are talking to our neighbours.

If however you think it is offensive, I shall stop.

It's not unattainable; it just might not happen in some, possibly quite rare, cases.

Not quite the same as claiming that it's one of AV's 'greatest benefits.'