What are “Community Wiki” posts?
From my understanding is that new users cannot create posts as community wiki - based on:
New users can't post community wiki questions directly
The answer's author checks the community wiki checkbox when composing the answer. Note that this checkbox isn't available to new users.
Is this a bug? How should this type of thing be communicated to new users?
Edit apparently I missed the part of the same FAQ question linked above that answers my question:
An answer posted to a Community Wiki question will also be Community Wiki