>> Especially since all these companies ask for and verify your cell phone number – which is way more static than any email address. My domain is 27 years old,

>> Especially since all these companies ask for and verify your cell phone number – which is way more static than any email address. My domain is 27 years old, my oldest phone number is 5 years old (and it's a virtual phone number from textnow). Yes, I still receive spam to email addresses I gave out 20+ years ago. The thing is, I'm avid traveler, and phone numbers do not cross borders very well. Email does. The biggest hurdle has been "For security purposes, write to us from your original email", which requires me spoofing the FROM line in my email client.