My radical opinion is there shouldn't be 2 flags, there should be N flags, user defined, so that we can flag humor/satire/factuality/insight/political and a bunch of other things. I fully realize that's not going to fly any time soon.

Adding AI in addition to the standard up/downvote and flag seems a reasonable thing.

Flags are a signal to the moderation system. What does it mean to "flag" something as "factuality" or "satire"?