One of the reasons we think this may occur is that our terms are often long, have ampersands, and otherwise don't match what people are searching on. For example, "Dungeons & Dragons Fourth Edition", "Dungeons & Dragons Essentials", "Mutants & Masterminds Second Edition" are common games. Our most active tag is
dnd-4e. This isn't a common search term in Google. A much more common term is
D&D 4, or
Dungeons and Dragons 4. A search on
dnd-4e has rpg.stackexchange.com questions pretty high in the list. But of course due to the 25-character limit and no special characters, our tagging options end up diverging from what people may search on. In addition, people generally use the tags to avoid having to say all that stuff in their subject.
Do our tags have a lot of influence on how we're presented to Google?
Should we be double-tagging items as e.g. [dungeons-and-dragons] and [dnd-4e] to try to get the SEO?
Is there some other solution to this problem?
Our site gets some decent SEO but not near as much as it should be for the content on it (as compared to other RPG sites).