I work for the largest ISP in the UK Education sector and concur with your points. Also, the IWF system for us is mandatory and we purposefully have to ensure t

I work for the largest ISP in the UK Education sector and concur with your points. Also, the IWF system for us is mandatory and we purposefully have to ensure that if our systems are unable to enforce the IWF list they must stop serving requests. We are seeing a large increase in the number of users using things like VPNs or attempting to use TOR etc.