User blog comment:Inferno Pendragon/The Purge Begins/@comment-2059440-20160131213907

we will also allow "hero in name only" types if they are proven psychotics like Punisher, since they take their actions to an extreme that we can class them as "delusional" at best and downright "Knight Templar" at worst.

(so if a show has a serial-killer "hero" they may still count, providing they are proven to be sufficiently psychotic (a step above anti-hero and more in line with (as mentioned) "Delusional").