1. Each domain you loaded that had Cloudflare asked you for a captcha. You would normally have to solve one captcha to unblock yourself from the site, then right click on the images that didn't load to get the CDN subdomain of the site, then solve another captcha to unblock yourself on that subdomain.
Eventually, in 2018, Cloudflare started allowing Tor traffic iff you use Tor Browser (it does fingerprinting). So I was right, they didn't need to block Tor, contrary to the idiots who would argue that there is no alternative.
Also, it was a multi minute process to solve one captcha as they used recaptcha, which has always been the worst captcha in the world, and varies from giving Tor unsolvable problems to blocking it, to giving borderline unsolvable problems. So after a few minutes you can get past one captcha after getting lucky enough to get a few borderline unsolvable ones. Eventually hCaptcha came along and Cloudflare eventually switched to it and now there is no problem, so I'm right, contrary to idiots who argued with me claiming there is no alternative.
It's still garbage though, thanks to Cloudflare the web is crippled in yet another major way. You still need to solve a captcha if you use Tor and trip the fingerprinting and WAF crap, despite that giving no security benefit to the website.
Oh yeah, and they leaked private bank sessions across the internet because their little blocking scripts were too buggy (the Cloudbleed vulnerability).