Pondus, I agree with you 100%.
My ISP email address book contains only 14 addresses- mostly blood relatives.
I have hundreds of addresses in my gmail address book. Emails to my gmail address then go to my ISP mail. I like that. If I need to reply to the gmail addresses, I go to gmail and reply there.
Point of interest, virtually no one knows what I call my real email address is. I like that. Of course if you would like it, I’ll tell you. 