For those of you who use an email address with a custom domain name, like first@firstlast.com, do you use that email address for every online account you create? It seems weird to me to do that if the email address is also my professional address and the domain is used for my professional/portfolio website, but maybe I’m overthinking it.
No. For most online activities, I use pseudonyms. For shopping, where I want things delivered to my home, I use the real postal address, and most times still with a pseudonym email.
Only where I actually want to look serious, I use this email with my real name as the domain name.