Yes, but there is a limit to the amount I would deem justifiable. (like cutting someone's junk off, I would never ever think that is justifiable.)
What if, taking Riker's scenario, cutting said person's junk was the only way to get them to reveal info?
Only if it's used on people that hate DB/Z or other things I like.
Yes I do, I don't find anything wrong in it
Eh, DBZ isn't all that anyway.
No, it isn't useful and nor should we subject ourselves to such savagery. It is a primitive act that is reserved for sadists, anything else would be simply lying to ourselves.
Preserving our integrity and humanity is the forefront of our culture as human beings.