I'm on the free tier, but I also watch my logs. The vast majority of the traffic I'm getting are scrapers and vulnerability scanners, a lot of them coming through residential proxies and other "laundered" egress points.

I honestly don't think that Cloudflare is on top of the problem at all. They claim to be blocking abuse, but in my experience, most of the badness gets through.

when you combine a residential proxy with a tool like curl-impersonate (there are libraries in Go for this type of fingerprint spoofing now) they dont even show up as scrapers anymore, just users. especially when they adjust timings to mimic humans.

clouflare only blocks the most dumb of bots, there are still a lot of them.

this is why cloudflare will issue javascript challenges to you even when you are using google chrome with a VPN, they are desperate to appear to be doing something. and every VPN is used to crawl as well. a slightly more sophisticated bot passes the cloudflare javascript challenge as well, there really is nothing they can do to win here.

i know some teams that got annoyed with residential proxies (they are usually sold as socks5 but can be buggy and low bandwidth) so they invested into defeating the cloudflare javascript challenge and now crawl using 1000's of VPN endpoints at over 100 Gbit/s.