Currently open threads are weekly and very well received. However they tend to fill up quickly. Personally I fear that my contribution will drown unless posted early on so I tend to wait if I want to add a new top level post. Does anyone else have this impression? Someone with better coding skills than me could put this statistically by plotting the number of top level posts and total posts over time: If the curve is convex people tend to delay their posts.
So should open threads be more frequent and if so what frequency?
Many people use open threads to share links to various articles. Perhaps it is media threads that should be more frequent? E.g. Maybe we should have Written Media Threads and Visual Media Threads? Or perhaps open threads should have topics? For example, Open Thread for asking for advice, Science Open Thread, Social Science Open Thread, Futurism and Transhumanism Open Thread, Artificial Intelligence Open Thread, Open Thread to share links to various blog posts, long form articles, Open Thread that is similar to Reddit's Best Of (people would link to insightful comments from outside of LessWrong), etc. Some special threads, e.g. Group Rationality Diary are already like specialized open threads.
Having open threads every day would clutter Discussion and it would make finding anything very hard. "Open Thread" is a very non-informative title.
I think that one of the reasons why too few people comment on old threads is that LessWrong post sorting algorithm, being based on Reddit, doesn't move the threads that have recent comments to the top. At the moment the only way to notice that the old thread is now active (unless someone replied to your comment) is to notice its activity in "Recent Comments" section.
Something like this was tried and it didn't really work..
Additionally, I generally don't see a real reason to make the OTs even more regular.