Facebook has a policy that they expect every user to use their real, legal name on the site. They also have a policy that their systems people can suspend accounts if there is a reasonable expectation that a user’s listed name is fake or misleading.
Those two policies collided in a spectacular “fail” moment for Facebook when they suspended the account of a Vietnamese man whose name is pronounced “Poo da Bi”.
Being Vietnamese, the spelling is quite different, and the story is hilarious because there are so many ways Facebook might have avoided embarrassment over this, and they pushed it to a full-blown media circus.