they'll be using photo analysis algorithms to detect how intoxicated you were in the photo and suggest that you not post it
... Except that most of the time the people taking those photos are posting them while they are intoxicated, and therefore the suggestion not to post won't have any effect
My impression is the regret in taking these drunken pictures happens years after the fact, when the drunken college scene has been left behind, and the poster now has a family and a 9-to-5 job and they want to distance themselves from that past. Trying to tell college students that they shouldn't be posting inappropriate pictures of themselves drinking is futile, the warning will be completely ignored.