Just to clarify, my first post was in jest. I was having fun and laughing as I wrote a response from a crab's point of view.
On a serious note, I do wish that everyone was light hearted when it came to thinking about crabs. Sadly, I don't think that many are joking when they say that crabs are evil. This is why I do have somewhat of a problem when someone labels any organism as evil. It leads to flaws in the thinking of some people. It also gives the people who think like that an excuse to do things to animals that they would not otherwise do to an animal.
Also, I truly feel that if a crab has caused problems in your tank, then it is your fault not the crabs. If you accidentally introduced the crab to your tank then I am willing to call that no fault. If you put the crab in there and then it caused problems, well, then it was you and your ignorance that caused the problem and thus commited the evil. The crabs are just innocent pawns caught up in the schemes of humans trying to play God.
Dang, I started out light hearted, and I was wanting to end that way. Now that I have thought about it, I guess it really does bother me. Crabs are not evil, and it isn't right that every time they are mentioned someone pops up and calls them evil. Usually this is followed by some suggestions for their torture and death.
I guess I would rather see a "Crab-free Reef Society" or a "Crabs Don't Belong in Reefs Club" instead of them being labeled as evil.