I don't own the site so I cannot give an official response, I'll ask Ostraco when we catch up for beers at the weekend in Plakias
My personal opinion is that personal links are ok (lots of people use them in other forums) especially when it is for something non-commercial and in this case somewhat related.
Perhaps because we are a non-technical forum there are very few sigs with links in (heck I can't even be bothered to put one in to my Plakias pics!) so when one does come along people think toes are being trodden on.
Cheers,
Paul... who has just passed his exam and will be flying home tomorrow (thank god.. as nice as Philly is 5 weeks is too much) ready to come out to Plakias Friday evening... Hurrah