Do not change the username system

This is a horrible idea. 

-The change will prevent millions of users from using their preferred name or username. With the identifier system we still have, everyone can have the name that they want without stepping on each others' toes.

-The change will encourage black-market trading of Discord accounts for valuable usernames. En-masse, users will create accounts to "squat" on usernames for the purpose of selling them.

-The change will pose a problem for any public figures, celebrities, and influencers, as impersonation will become easier. This also ties into the above point, where accounts that have sniped the usernames of these big-name users will be bought and sold on the black market.

-Users have been paying real money for years to keep a desired number identifier tied to their account.