Would it perhaps be better to have a single forum regardless of Notes/Domino version, as it seems that the vast majority of postings are not version-specific.
Having the accumulated knowledge of this forum split into 3 databases reduces search results.
If version number is important to the searcher, perhaps they could specify version in the advanced search?
Subject: I think that’s a great idea
And while they’re at it, how about having the most recently posted topic always at the top of the list. And every time it receives a response it gets bumped to the top of the list. That keeps the most active topics at the forefront of the forum.
Subject: You stole my wish llist 
Thats also a big one on my list. And it’s standard in most forums.