Hmmmm. What about swapping `display_name` + `account_is_verified` for `display_name` + `display_name_is_verified` or alternatively `display_name` / `verified_display_name`? The idea being to tie the verification mark to the display name, not just the account.

Such a scheme could then enforce policy in the verification process that imposes restrictions on what the display name would be allowed to be.