I guess there is an element of what you think the site is for. I have always thought that it would be nice to show the British Legion on the site so that branches could be easily found (although I am guessing there is somewhere better for that), I wouldn't particularly want them reviewed though. Similarly it would be nice to for instance show music venues along with a what's on guide to any area, and if we were to do that I think it would be essential to include ticketed venues.
Long term I hope we can do it by improving the filtering and categorisation on the site, but it is hard to know how exactly we are going to do some of that. For now as Strongers says, I think the thing that bothers me more is where we delete any useful input.