Right now querying posts has logic like this:
WHERE (((((((((("community"."removed" = $9) AND ("community"."deleted" = $10)) AND ("post"."removed" = $11)) AND ("post"."deleted" = $12)) AND (("community"."hidden" = $13)
Note that a community can be hidden or deleted, separate fields. And it also has logic to see if the creator of the post is banned in the community:
LEFT OUTER JOIN "community_person_ban" ON (("post"."community_id" = "community_person_ban"."community_id") AND ("community_person_ban"."person_id" = "post"."creator_id"))
And there is both a deleted boolean (end-user delete) and removed boolean (moderator removed) on a post.
Much of this also applies to comments. Which are also owned by the post, which are also owned by the community.
featured_community and featured_local could be combine into a unified enum/value field and allowing expansion of features for other uses. Maybe only on post_aggregates to start.