I don't know that most Christians would ever dabble in pirated software; but just in case you are ever tempted, there are a couple of things of which you should definitely beware:
1. I suspect that upwards lf 90% of all so-called key generators (keygens) are infected with at least one virus or Trojan horse, and some have Trojan horse downloaders which, upon access, will load your computer instantly with all manner of nasty bugs and spyware. If you ever make that mistake, you'd better hope you have a ton of andivirus and antispyware programs at the ready.
2. Most pirateware is now offered by rather sleezy sites for a fee which might be as high as $50, amd must be paid through an adult Website...VERY unsavory to say the least.
The best advice which can be given to Christians is really something we all should be observing by nature as children of God: Simply put, LEAVE THE CRAP ALONE!