I'm not sure why "WAF has false positives" makes it useless, nor would I say this is anywhere near the scale of "breaking the internet" and I'm not even fan of the concept of WAFs in general.
The last one took out a lot more stuff than this one but the argument is the same - this product is a checkmark thing and when it's not fulfilling its checkmark purpose, it causes outages. Still an amusing bi-modality! I suppose it shares it with DNSSEC.
Basically CF default WAF settings saved more small and medium companies I can even count to. I’m not CF fan, but WAFs (with rate limiting) do help. Sad that one or two incidents for that complicated and big services make people post such comments, but cmon - it doesn’t have AI in it's name so sheeps have to cry, right?