PowerPosters (and obviously mods/admins) can create new tags. We had let others create tags, there was some abuse (spam), so we cut it off to PowerPosters. Anyone should be able to add any tags that currently exist. If you don't find a tag that you think is critical, then as a mod, power poster or admin if they can add it. A simple thread in Feedback requesting a new tag should work to get one added.

In the mean time, at 1600+ posts, you are well on your way to being a power poster anyway!

Brad!