Hunting forums help me stay abreast of all the current trends in hunting. Like what gear people are using, what techniques seem to be working, etc. This not only helps me to be a better hunter but it can save me money too.
It's also easier to chat with like-minded people. As a guitar-player, I like to go to guitar forums as well but the ratio of liberals to conservatives on guitar playing forums is heavily skewed towards the left. Some of the conversations on those forums can be, well....y'know.