Steve. You reap the crop you plant. Years of bullying and aggressive behaviour on the GA forums results in people drawing the conclusion that they probably wouldn't choose to fly with you.
I flew several times from Jerez with Brian and Hans who couldn't have been more welcoming and accommodating. Nobody ever seemed to have a bad word to say about Brian on the forums and indeed you have perpetuated this. That is very reassuring when contemplating stretching yourself to fly outside the UK in a very different environment.
Reputation is everything and yours precedes you which is why I think many long term forumites including some apparent uber-lurkers come out of the shadows to acknowledge they would no longer be comfortable taking the risk at FlyInSpain.