I'm suspended from Twitter because they think I'm not me. All attempts to prove otherwise are blocked by their cultural refusal to accept a phone number that isn't from a cell phone. This IS a problem when the world has developed a sub-culture of techies who control communication on their own narrow terms, narrow because they never step outside their own head-space and many live in the same city.
The exceptions were Academia.edu and Researchgate.com, websites meant for educated people that record serious papers by thoughtful writers. I successfully changed an update of my email name there.
My present email address is email@example.com.