Just out of curiosity, If Iam running a site with an internal forum, but will have content outside the forum as well, should my metatags and keywords lean more to the forum or the actual sites content outside the forum? Or a mixture of both? If both, I have been told to use like 12 meta tags, so should I just cut it in half? There are things outside the forum that arent in and vice versa.
I would focus more on the actual content of the site and not the forum. The reason being is that the forum is going to end up with all kinds of different and random content from users and so your best bet would be to focus your meta tags on a sure thing that you know will match up with your sites content. This will give you more control and it is taking advantage of a sure thing instead of something you are betting on. Good Luck!