My college (while learning computer science) thought a proper social media block was to whip up a hosts file that it pushed to every PC when it rebooted. It would just route certain sites to a black hole.

The freaking librarian would go around showing students how to delete the hosts file. Dude was out of pocket, he would print off whole chapters of text books for you too so you wouldn’t have to spend hundreds on the book. What a legend.

Until some winner made a batch file with a net send to a wildcard that crashed the whole school network