I guess it’s nice to search lots of things at once?

I’ve been using self-hosted Seafile for quite a while and can recommend it.

I don’t think so (and I say this as a vegetarian), because as you move up the intelligence scale your ethical obligations become more defined. For example, animals practice infanticide, murder, rape, etc etc, and we can’t really expect them not to, or judge them for it. We, on the other hand, should hold ourselves to higher standards. So should the superintelligent alien race.