> This is no longer "just a little bit of effort and minimal cost" - most likely no one will use unique emails for every site It takes a tiny amount of effort:

> This is no longer "just a little bit of effort and minimal cost" - most likely no one will use unique emails for every site It takes a tiny amount of effort: you setup your domain with a wildcard so all you need to do to create a new email address is to use it. You could send mail to barkingcat@real.domain.for.394549.net right now, and it will be delivered to my inbox with no setup required. It's also great in case you start spamming me. I don't have to struggle with your unsubscribe links, I can just blacklist all mail sent to barkingcat@real.domain.for.394549.net, and be done with it without any collateral damage.