1. Other editors I'll think about. I'm not trying to give anybody and everybody a place to ask editor questions, however. The main goal for the Emacs and VI forums is to collect the various questions about SLIME and Limp. If your editor has a great editing environment for Lisp, I'll consider creating another.
2. I hear you on the total newbies forum. I thought about that. Currently, my thinking is that I'd rather drop people off into the deep end with a particular dialect. If your question is about asdf-install or something, ask it in the Common Lisp forum. If you're really such a complete newbie that you don't even know where your question goes, that's one reason for The Lounge.
3. On Apache rewrites, yea, I hear you there. I was going to do some looking into that. Honestly, I don't get too much heartburn with various parameters since they have to be in there anyway, but there are some SEO-friendly things that happen with nice URLs that would help the bots to better index the site for global searching as the content builds up.
4. The implementation-specific subforums are a compromise. I'm pretty sure we'll whittle them down. What I didn't want to have happen was the dialect forums get a constant stream of implementation-specific questions. This wouldn't be a concern if we were building Ruby Forum or Perl Forum or Python Forum, where you have a single-implementation language (by and large, I know about Jython, Iron Ruby, etc.). So for instance, I created the SBCL forum with the hope that people who really wanted to discuss SBCL implementation issues, and nothing but SBCL implementation issues would have a place to do that without forcing everybody else interested in other implementations to wade through the content. But it's definitely a compromise.