I looked briefly at the last 100 posts and close to 80% to 90% seem to be PC related. C**P is subjective I suppose, but within those 80-90% I see a lot of support and good information as it relates to PC, treatements, side effects, and the related.
I agree that there are times when the board gets a bit heated and get a bit off track, but the vast majority of the posts are support related and/or informative.