I have to say that nothing about dubs bothers me, not even editing. This is why most anime fans find me weird. Not only do I enjoy watching dubs, I also don't mind the fact that dubbers edit the show (I wouldn't be a aware of most edits in the first place, as I don't watch the Japanese version - so edits have no effect on my enjoyment of watching a dub).
Congratulations, you contradict yourself.However, if something completely out of the blue happens to a dub which changes the way it's being made, like a VA switch (argh!), then that does upset me greatly, as this ruins the quality of the show's voice acting. In some cases, it can even change the personalities of characters, because they are no longer brought to life in the same way as before.