I visited this site for around 12 months before registering, I think others have as well, so you can get an idea what this site is about before registering.
There are a few sites out there that are just a closed book affair, only the select few are welcome,
you can register but don't rock the boat.
We all can learn more
because nobody knows everything, there are a couple on here who do know alot though and have helped many with their wisdom and knowledge.
I do agree that perhaps if somebody registers and rarely posts then perhaps they could be removed or somehow quarentined for a time before being totally removed, give them time to post. As we know some 'old timers' have left but I think that those are different situations, and most have made their reasons known.