[cperciva]

Don't Be Evil applies here.

If you get to the point where you're asking "how can we screw our users without getting sued?" things have gone very very wrong.

[genwin]

It's often "how can we serve our users without getting sued?" A user can sue because they find the colors on your site depressing.

[portiad]

Yes, but California is also very sue happy. Better safe than sorry is sometimes a necessary and relevant strategy.