cloudflare explain it like I'm 5

So Cloudflare MtM for websites which logs ip . Bad

But doesn't everyone log IP ? If not cloudflare then the hosting company? Aren't this a client side issue ? I.e use a VPN.

What would be an option to cloudflare? Existence of any hosting provider that is a good option? Looking at moving to githubpages once my paid hosting expires in a year

How will Wei and cloudflare happen/do/enforce?