[jaoane]

> Cloudflare sometimes preventing access to some sites and annoying CAPTCHA challenges due to CGNAT are relevant to the average person.

They would be, but thankfully CGNAT doesn’t cause that.

[messe]

It contributes to it, because now you're behind the same public IP address as X other people. You're then X-times more likely to get flagged as suspicious and need to enter a CAPTCHA X-times more frequently.

[jaoane]

Cloudflare easily detects that using your discrete external port range and knows better than to show you a CAPTCHA.

[jeroenhd]

It's not a direct cause, but if an IP is hitting my website with spam, I don't care if it's a spam bot or a CGNAT exit point. The only way to stop the spam is to take action against the IP address. For CGNAT customers, that means extra CAPTCHAs or worse.

You can ask your ISP for your own IPv6 subnet if you don't want to be lumped in with the people whose computers and phones are part of a scraping/spamming botnet.