I can literally just go write a script that uses headless firefox + mitmproxy in about an hour or two of fiddling, and as long as I then don't go try to run it from 100 VPS's and scrape their entire website in a huge blast, I can typically archive whatever content I actually care about. Basically no matter what protection mechanisms they have in place. Cloudflare won't detect a headless firefox at low (and by "low" I mean basically anything you could do off your laptop from your home IP) rates, modern browser scripting is extremely easy, so you can often scrape things with mild single-person effort even if the site is an SPA with tons of dynamic JS. And obviously at low scale you can just solve captchas yourself.
I recently wrote a scraper script that just sent me a discord ping whenever it ran into a captcha, and i'd just go look at my laptop and fix it, and then let it keep scraping. I was archiving a comic I paid for but was in a walled-garden app that obviously didn't want you to even THINK of controlling the data you paid for.