Having been active on just about every review site there ever was, I have come to the conclusion that most members sign on for research purposes only. They see where the Buzz is with sources, snoop around cycle logs, and browse a few forum topics and that's it. They have little interest in conversing with other members for what reasons are far beyond me.
Then there are those members who jump right on in, plant both feet, roll up their sleeves, and dig right into the forums. These members are are social butterflies and love this shit. Chatting about their experiences, giving their input, and just rubbing elbows with the gang. These members, through their perseverance, help make a review site what it is since a site is a reflection of it's members attitude.
We know that in time we shall grow and a slow steady growth is want for it is much easier to control. It's like weeding a garden as the weds pop up instead of waiting until the weeds have taken over. Follow me ? Once the weeds take over, you can remove them however damage is done since the weeds have choked out the good and run rancid through the garden.
So in summary, we let all join our happy community hoping that one day they will break free of their sociably challenged cocoon and be an active member within the community. It's just a matter of time.