OptionalspeciesOnly set on the biggestCatch axis.
Their Discord username, or null when it is not known.
NULL rather than a placeholder, and the row is still returned. Someone the bot has never stored a user record for keeps their rank - dropping them would renumber everyone below and make the board disagree with itself between two requests. Render your own fallback; a hardcoded one here could not be translated.
True for the row belonging to the session user, so a UI can highlight it without searching.