Suggestion 1 is good, and it's often requested. Suggestion 2 is good in theory, but I don't think pulling it off is necessarily viable. I also don't think it would achieve much. Suggestion 3 isn't has two sides. More other types of staff-life people is a great suggestion (although I don't know if it's very realistic), less moderation sounds awful. Excellent moderation is one of the site's strongest points right now. The reviews (point 4) are fine as they are. In fact, there used to be scores, but I think it was decided that reviews would be more meaningful if they didn't assign a score.
My top suggestion to improve the site is to make sure it's not down so often. My second suggestion is to allow us to change the email address we're registered here with. It's a security issue even normally, and I think it blew up really badly last time there were password problems on the site.
