system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What exactly do the UK porn filters do?

I can still browse porn like I could before... So... Why is everyone so mad?
gpt
They only exist in the bigger ISPs, and only apply to new installations.

They work by compiling categories of websites, and refusing access to sites which match those. Based on the blocks in place, Claire Perry MP and others in support feel that children suffering from gender identity/sexuality issues, or wanting information on drugs, or eating disorders should be denied this information. Because that always helps resolve problems.