This type of incident points to the downside of social media.
In the days before social media, in order to communicate any 'social' thoughts, you had to actually verbalise them to other people, and if you spoke in an unacceptable manner, you would be cut off instantly, and eventually learn a conversation filter based on what is, and what is not acceptable to say to other people.
Now, it is possible for your brain to leak any verbal garbage going through it onto a keyboard, and out into the world, with no-one ever pulling you up and telling you to act your age and behave.
The culmination of such activity - the ability to spout any old nonsese that comes unto your tiny mind, and it be replayed to the universe in a nano-second, is losing your university place, and hopefully receiving a wake-up call that just because you think it, and you may not mean it, it is still no OK to say it out loud.