Needs for remailers
There are a lot of other ways to be anonymous then the use of remailers. Things that are truly anonymous, but we won't go into them here. So will making remailers go away make it easier to find people? No, and getting rid of them will not be easy anyway as they are so spread out and there are so many of them. Most likely the way these people will be caught is because they will mess up, either they are known to the university and have a grudge or/and they will let it slip to someone that they are the one.