When a user creates a post, we should be able to scan other existing posts for that institution for the social networks being posted to, and make sure the post isn’t already built exactly as is for one or more of the social networks. If it’s exactly the same, we should prompt a message that says “hey, looks like that post already exists... you sure?” This should apply to both already posted posts, in addition to future scheduled post, as well as posts pending approval (not “failed” posts).