"Hi, I'm Norbert and I was searching for a CJ Walker CJ55 and google gave me a link to this advert. I couldn't show my interest in it without registering with the forum (I got some automated emails from the forum but I only wanted to quickly ask if the turntable was available but as I don't like spending ages on the internet I doubt I'll be reading the forum or taking part so I didn't bother to read them). I asked my question and was told to write something here about myself first.
I sware, that's how it happened!"
Would that do? Doesn't sound particulary interesting to me...
Being a relatively shy person myself, I'm not particularly keen on the rule (and thankfully never HAD to do it - although I did eventually some 2 years after joining ).