I get your point, you like the easy and convenient hosting that Cloudflare offers. I wouldn't feel comfortable logging into a website that's behind Cloudflare because they see everything. Including login credentials you submit. That's why I try to avoid CDNs (not just Cloudflare) in general. Also, what really annoys me is how Cloudflare treats VPN and Tor users. You need to solve 5 million different restarted CAPTCHAs. This is in my opinion user-hostile. I don't do anything bad, I am just a regular user looking to protect my privacy and not expose my true IP and location by using a VPN.