For threads, include either "Fairy Tail" at the beginning of the thread title if the thread is about Fairy Tail and "KHR" or "Reborn!" for Katekyo Hitman Reborn!
I'm just going to further enforce this and add that for Katekyo Hitman Reborn! threads, please begin the thread title with "Reborn!" instead of "KHR" for consistency's sake. ~ImotoChan