Sometimes my AppleScript questions on this forum go unanswered. Is there a more active, AppleScript-oriented forum site that I can use?
Just the usuals, such as MacScripter or the Apple support discussions.
Not necessarily referring to you specifically, but these days I'm seeing a lot more topics that are too specific (e.g. use resources that may not be available, such as a particular database or expensive application), include way too much code, or just contain no useful information (or no information at all). Constantly having to fight to get information about what someone is talking about has a tendency to burn people out, so the pool of contributors winds up drying out - not that it was particularly large to begin with (more like a puddle).
Usually you will have better luck by narrowing your query to just the issue at hand, including a complete (small) example that demonstrates the problem - topics that look like they will become a time sink tend to be avoided. Of course, it could just be that nobody knows...
Sites that have a dedicated AppleScript forum (e.g. MacScripter or MacOSXHints), tend to get more views (not necessarily more replies), while those that are of a more serious nature (e.g. StackOverflow or the Apple Mailing List), usually have lower views but higher quality responses, so it depends on what you are looking for. I keep track of a few forums, but target any questions to the one that has what I think are the people that can answer it (you can tell who the regulars are and their skill levels by watching for a while).
Your first sentence doesn't make much sense to me. I don't see how either forum can be more or less serious than another related forum.