I'm a 3x guy and haven't gotten to look closely at OACS4 yet.
I did notice that the new bboard urls look like: (for example)
http://openacs.museatech.net/community/forums/message?message_id=5202&forum_id=5110
This looks substantiallly different than the 3x version.
It looks like the message_id is all numeric and topic (forum)
text has been removed.
It's probably late in the process but I think that it would be
more useful to have NO urlvars in the URL and instead
have pseudo file names like:
http://openacs.museatech.net/community/forums/message=5204/
...where /message=5204/ is a pseudo file name. This will allow
search engines to more easily include threads in their index.
Also, for symplicity, why include the forum_id in the urlvar. This is already stored the the bboard table for each message.
-Bob
