I've never understood this.
You like anime and manga? Fine. How does having threads about other very related things bother you in addition to having anime and manga threads?
It's not like there's a high competition for 1st page space, given the "HI, THIS IS MY FACE WHILE WATCHING FRIENDS" and "I WOULD LIKE TO SLEEP NEXT TO HER" threads which are currently what constitutes the first page.
It's like you think that having one Tsukihime thread will completely destroy every other thread which is now running.