I don't mind having a dedicated forum for product sets like interactive whiteboards, because sometimes we have a problem whose solution might involve addressing one or more of the system components: hardware, software, firmware. Where should you place the post if you don't know where to look?
I like the Unix idea of atomic storage which can be pointed to by multiple inodes.
Or an approximate equivalent, the idea of 'tagging' a post so that it'll be accessible in multiple ways.
You shouldn't have to classify your post into only one box, even though it may (if you like) have one "home" category.
Anyway, now I need to find out where the actual forum is, rather than the discussion thread talking about its establishment.