>>40271284/vp/ and /mlp/ have been rivals since they are both containment boards that popped up within similar time of one another...however it is mostly kayfab that the two hate each other. Those who buy into the kayfab of hatred between the two boards are newfags of the highest order, as /mlp/ posters often migrate to /vp/ and /vp/ posters regularly visit /mlp/.
Something something autism.
Also don't yell at me for exposing the business, yell at the newfags for being such loud marks.