Well, the new tuck n' roll upholstery job still isn't finished in the ol' padded cell (soon, I'm being assured), but here's some food for thought:
1) This is "The Book Forum," which is like being WalMart in a way. There are plenty of "boutique" forums out there, smaller and more focused, where like-minded readers can gather. But with 4,000+ members, TBF is doing volume business. With that many members, and a broad-based approach to books, one is going to get, as they say, all kinds. Not everyone is going to get along or even going to want to get along. That's the nature of this particular beast. Of course, there mght be a solution to this, just like in a brick n' mortar bookstore -- divide up your "best sellers" (Brown, King, Rowling, and so forth -- all readily available at your nearest WalMart) from your hard-core literature (not readily available at your nearest WalMart, except maybe in comic book -- sorry, graphic novel -- form). Just a suggestion.
2) Being a large, broad-based business, there are people here who are going to come in every day and browse through everything, meet their friends for lunch, and maybe even sleep in one of the storerooms. Other people are going to stop in get what they need and get the hell out. Others still are going to come in, look around and go "Ewww! This place is just like being at Walmart!" and flee. The turnover in members is going to be high. This, in turns, means, the forum is never going to stand still, it's always going to be shifting as old members move on and new members move in. Of course, TBF has changed. Look at all the people who no longer post and the new people who have taken their place. A forum is a reflection of its members. This forum is reflecting its current active membership. In six months there will be more turnover and the forum will appear to have "changed" again. It's a philosophical decision every business owner faces, do they want to go for high volume/high turnover or do they want the same loyal customers coming back again and again? I think the owners here have clearly decided to go with volume.