Brackets for name with spaces

When a person want to ban a player but the player has a glitched name with a space, he/she can't, because commands thing you are gonna write the next parameter. So, if you can put a name or reference to a player between brackets, you technically can ban that kind of people. Or even more. You actually can give a score to a person that doesn't exist, of we could put the name as a Json, you can have a colored name in vanilla with commands