Doesn't the Build forum already serve that function to an extent as the main thing people need guidance for are the builds?
I don't have an issue with making a forum for general guides, but are there people interested in writing them?
I think there are at least some. I mean, there already exist a good many general guides on steam and elsewhere.
This is one of those things that would have been best to have since early on, as the guides you now have scattered all over the place would have been here, probably.
Here is what I would imagine a General Guides section would be like if it were created;
It would be a "highly viewed" section with few topics, and fewer posts. The posts that do occur are sporadic at best.
I guess its up to you whether or not you value a board that slowly accumulates and becomes are resource over time vs just pointing people to the wiki / builds section.