It is a real problem. We're trying to get to the bottom of it but the system seems vague and opaque and we have no idea who's doing the actual blocking. I do think some publicity might help us reach folks who are in charge of these school firewalls, which seems to be run by IT providers. In addition to kids posting, here is a screenshot of schools posting on Facebook groups also confused by it: https://imgur.com/a/YzFEEmp