Thanks!
I don't know what mechanism would promote the following, other than "energetic members". But I seems to me that many threads contain great information scattered through them, (not always related to the thread title), that could be extracted and condensed into a one-post Sticky or a short Idea. One one or two entries in a Recommendations database or thread.
P.S. Some forums have multiple Sticky threads that might benefit from being condensed each into one post, then perhaps combined into one Sticky "Reference Thread".