Currently, you can turn off "Publicly listed", but this is different than private because the market is still visible in your portfolio page, the API, and several other places. It means "less advertised" rather than "private".

Resolves YES if private markets are supported at any point in 2023 (even if they are later removed). Otherwise NO.

Here private market will be defined as a market that are only accessible to invited users, only accessible with the link, etc. (In the event this is unclear, I will judge based on discussion with other authors and the Manifold team.)