It is in this way that Cloudflare is bad. It's bad for consumers being blocked because Cloudflare doesn't like their browser, IP, or local weather (because who the hell knows exactly why they're being blocked), and it's bad for businesses too: both competing CDNs that can't compete with CF's scale, and businesses that rely on CF but will be hit with a monopoly-sized price increase once Cloudflare's competition is extinct.
Besides that, Cloudflare is pretty aggressive with their captchas/blocks, and there been times where I, a resident of Spain, been blocked out because it's impossible to pass their captcha. I either have to give up and find some alternative service doing the same but without Cloudflare, or I try again another day and suddenly it works.