It can matter to the end user. I had to spoof my user agent, because I was using a beta version of Firefox, and cloudflare thought I was a bot. Sites still don't load sometimes at work (just keeps cycling through the "checking to make sure you're a human" bullshit), regardless of browser. It's a single point of failure for much of the web. Not that long ago (last year, I think), cloudflare had some bad config files pushed to prod, and about half the web broke. Cloudflare can arbitrarily block (and has done so) websites, since they're serving the content. In theory, cf is a great service. In practice, they've abused it enough that we really shouldn't trust them again.