As was identified in this post from @gridcoinman, the number of posts a user can make per day is four without experiencing a dramatic reduction in their rewards per post.

Proposal:

Any user with a reputation >= 50 should be able to post FIVE times per day, anyone with a reputation >= 60 should be able to post SIX times per day, and so on.

Result:

This would reward users with an additional post per day who have demonstrated their ability and willingness to add value to the ecosystem. It would also add an additional incentive for behavior that improves reputation.

What say you?