Yup as above, you can grow this site without input from the owners. But it will take effort - ask shops to advertise the site so newbies have somewhere to come for questions and help (unbiased answers)... Then they (well some) will hang about and help other newbies etc. But it is finding the new people that is the challenge. To be frank I think facebook has harmed a lot of forums like this too as much of what used to be on sites like this is now on there. Perhaps try to target some of that traffic too?