A spite thread is a VS thread similar to a stomp thread, where a user makes a thread pitting one character against another that immensely outclasses the former, whether it is by tier, hax or skill. Spite threads are usually made to anger fans of a specific character, cause controversy, or are made out of self-enjoyment for the poster.
The difference between a stomp thread and a spite thread is that stomp threads are mostly made on accident without accounting for the characters' abilities, while spite threads are made on purpose with the full intent of giving a specific character a win or a loss, causing confusion, or to prove a point to themselves.
When a match is a spite thread, it cannot be put into either of the combatants profiles due to almost always being a stomp. Making spite threads is not advised, either.