Instruct: Classify the given Amazon review as either positive or negative.
Query: This was very bad writing

It really was. The whole idea of Professor X going mad clearly came from Bob Harras, not Lobdell, and if you're editor in cheif at the company you can do anything you want, even if it only succeeds in angering more readers then it actually attracts. Another story like this one, and there won't be a Marvel Universe anymore.