Randomize Your Usernames

Use a different username for every service. For every new website you log into, create a random username. Use a random SHA hash, or use a passphrase generator, or keep your own list of random usernames. There’s no need to remember usernames anymore, the same way that there’s no need to remember passwords anymore. Password managers like 1Password, or Apple Passwords make this trivial. Disconnect your accounts! Privacy is privacy.