How long do you think it would take for various schools IT departments (usually incredibly understaffed) to reach out to every single website where they found c

How long do you think it would take for various schools IT departments (usually incredibly understaffed) to reach out to every single website where they found content that doesn't fit the school board's policies and request a take down? How many websites would, at the request of Random School X, would remove posts just to comply? Simply so a few hundred students can use the school network rather than a phone, home computer, etc.? This seems like a ridiculous request. From the school IT point of view, block it and move on is much more realistic.