Does this site need to continuously meet any sort of metrics or threshold in order to remain public?
There are three kinds of sites:
- private beta
- public beta
- graduated / launched
This site has officially launched (party coming soon). Sites don't go backwards... once they are public, they stay public; once they graduate, they stay graduated.
In a few circumstances we closed sites due to complete lack of activity. We only close sites if we feel like almost no questions are getting good answers and the site itself is an "attractive nuisance" on the internet. The sites we closed were extreme ghost towns compared to this site so it seems extremely unlikely that mi.yodeya will ever get closed down.