Terrible Crossovers and Self-inserts

Now this one just tears my heart out. Some crossovers fit together well, and are explained accordingly. Some look like someone slammed their head on the keyboard and corrected most of the spelling mistakes. I swear that I have seen a Naruto/Power Rangers crossover. Putting Naruto with Inuyasha or Bleach can be pulled off, but Pokemon isn't going to make the cut. Not only are the powers non-compatible in lots of crossovers, but how characters get from their world to another shouldn't be the almighty out of nowhere world switch tactic. I don't care how powerful the attack or stupid the author, I will accept no portals that suddenly pop out of nonexistence, which brings me to self-inserts. "She was walking down the street when all of a sudden... BUGS BUNNY DREW A HOLE UNDER HER FEET AND SHE ENDED UP FALLING THROUGH! WHEN SHE GOT TO THE OTHER SIDE SHE ENDED UP FIGHTING HEARTLESS SIDE BY SIDE ICHIGO IN MIDDLE OF KONOHA!!!".................. Do you see what I mean? No matter how you look at it, it sucks. The worst part about self-inserts? Go back to the "Bastardization of a Character's Personality" post. If you are tired of this... MOCKERY of literature, please tell me.