Stealing is wrong - separate of the law. Morally, it's just wrong. People can try to justify and rationalize and express "oh, but I'm only stealing a little", but the simple fact is that it is wrong.
I don't understand how anyone could debate otherwise.
That said, there are gray areas out there. No CD patches, for example. I see nothing wrong with them - provided you legally purchased the game. But some say it violates the law. But EULA rulings in courts like California bring that into dispute.
I think No Steam patches are fine too. I think circumventing product activation as long as you paid for the software is fine also.
I don't dispute that you should PAY FOR and legally purchase software and hardware. But once you get that software, that's where I have issues. It's YOUR software - if you want to No CD patch it or No Activate patch it, I have no trouble with that.
You should not be allowed to decompile, alter and sell the software - you should only be able to use it for personal / business use as expected (like using Excel for accounting, etc.) But you should not be forced to jump through hoops just to use the software or hardware you have already paid for. At least, that's how I feel about it.
So bottom line - stealing is bad. Other stuff is gray area. :)
One More Thing - I don't think the argument that "I'm pirating it to see if I like it enough to buy it." in most cases. If a working DEMO is available, or a Try Before You Buy Shareware version is available, then that should be sufficient, I believe.
That is what Demos are for, are they not?
