My intention was to explain how to identify what could be causing the issue, not to give any indication that I think this is acceptable. Unfortunately like you point out, sometimes you _really_ do have to deal with a website behind an over sensitive WAF, in which case the steps I provided can be helpful.

My problem is that I help a lot of people set up their computers because they want to get rid of ads and tracking. They don't know how to fix this. Or more likely don't even realise there is a problem and will just close it down and continue with their day. So I guess it's not my problem but it is someones problem.