KILL OFF Catwoman. Not cool.
Killing off beloved characters is upsetting, but sometimes I think it needs to happen more often, especially in long serial works. It can take the edge off a dramatic moment when you realize that a given actor or character franchise almost certainly means the scrape will come out OK in the end.
Mind you, I'm not voting to tie Catwoman in a sack and throw her in the river or anything. You just caught my interest with that petition and set me wondering just how much influence mass fan behavior might eventually have on comic titles and TV series.
Even if the senior editors are plotting to kill Catwoman, you should take heart that it is a comic book and deaths are not always as permanent as they appear. The DC universe has several characters who might be able to pull a kitty cat out of their hat--Zatana, Dr. Fate, perhaps one of the New Gods...