You can thank abusers and spammers for ruining the internet for you, not website operators trying to deal with spam/bots.
I've had my most inconsequential service taken offline with a $5 booter because the user wanted to brag on Discord. You can bet I default to Cloudflare now.
It's not just for the website operator either. All of my users suffer when $5 botnets take down my server too. And it's cheaper and cheaper to do that every year thanks to the internet of shit.
So I'm not sure who this "Tell HN" PSA is for. Are the baddies going to read about your inconvenience and stop being baddies so we don't need to use captchas anymore?