but then I believe one only end up with their real names as user name is that is what they entered in the username box during registeration, not like it's mandatory to use ones real names for registeration due to kyc verification, as a matter of fact, I have not verified my account and I've not been asked to.
When you choose to sign up using the email method, there is no username field in the registration form. You need to provide your first and last name (Level 1 verification).
Since it specifically asks for first/last name, I believe this means you must provide your real information. If you are later required to verify your identity and they discover you provided false information, you may run into issues.
I support the suggestion to allow users to change or add their usernames.
Well, I really do not know about this since when I joined whale casino, I did so through their mini app on telegram, and with telegram, it's automatic sign up which does not usually require the user to submit or fill any form, not even a password was required since the account is completely linked to the users telegram account, and the username you are assigned is always the same as your username on telegram.
Recently, the casino's mini app on telegram stopped working for me, but I am still able to access my account through the website by simply choosing the login with telegram option.
If having ones real name as username is mandatory for incase of kyc request and verification, then I hope they make available the option for a username change, since what I have on my account is my telegram username which obviously isn't my real name.