An Idea just struck me...
OP, How about when people get a CTD, they test again to se if it is a replicable bug, they then PM you immediateley with their MPID and tell you what action to do to make the CTD. Then You can test it yourself, knowing you have a good install, and thats half of the problem eliminated, either it is a real bug, or it is just the persons install (or environment).
another advantage is that you may see what equipment people are using.. the makup of their char, just in case all people seem to be using the same gun for example...
?