More often than not, the best way to hide is to simply blend in with the crowds – this also encompasses one’s choice for a username. It is relatively simple to make a single throwaway account – just come up with a username, and off you go – however, if one makes throwaway accounts often, the task of thinking of a unique, and non-identifiable username can become a challenge. I would argue that poeple would often resort to using a pattern employing small changes for all subsequent usernames. Such patterns can be identified to a specific user if all users have their own unique patterns.
How can one reliably generate many unique-but-normal, and non-pattern-identifiable usernames?
Don’t complicate simple, there’s millions of people making random shit usernames, the only ones that are going to wind up with a pattern are the people (trying) not too. Smack a bunch of buttons on your keyboard and call it a username. Done!
Or if you want to make more work, every password manager at this point will generate random usernames.
Or for even more work, use a password manager to generate a super secure password, and use that password as your username
I sometimes use MAC addresses as usernames.