I think Theymos doesn't talk too much about the merit system, that's reflected in their posting history which you can find here:

- https://ninjastic.space/search?author=Theymos&content=merit%20system

As far as I know, no new merit sources have been added in recent years, but some deletions are possible if they aren't actively doing their thing. I agree that local board need sufficient merit source, this will help many users achieve worth it merit.