7. Does this mean my P2P downloading is completely safe now?
Not necessarily. While many people do use IP Filtering software like PeerBlock to help "protect" themselves from being sued for copyright infringement, it is not 100% protection. In fact some people believe that using blocklists like this are completely useless. Others disagree, and believe that even if it's not 100% safe, it still lets them download files more safely. Sometimes they invoke the "Bear Principle": when running away from an angry bear you don't need to be faster than that bear . . . you only need to be faster than the guy next to you. However, as I seem to remember seeing on the old Peer Guardian site at one point:
The only way to be "safe" with P2P downloading is to not share copyrighted content!
PeerBlock is good at what it does - keeping your computer from "talking" with ip addresses on your configured blocklists. Everything else is up to those blocklists themselves. And heck, even if the blocklists provided 100% coverage of "bad" ip-addresses, and if blocklists were 100% proven to work, there could still be some bugs in the PeerBlock software that may prevent it from working correctly on your machine; we offer no guarantees that it works, and disclaim any and all responsibility for the consequences of your own actions online. If you're sharing copyrighted music/video files and get sued by the relevant organizations, it's not our fault. If you're stuck in a country with an oppressive government and are trying to get out your plans regarding the upcoming revolution, and those in power break down your door and haul you away, it's not our fault. If you're sharing some secret footage of Area 51 and the "Men in Black" come knocking on your door, it's not our fault!
If you choose to download copyrighted material from the Internet, be aware that you may be breaking the law.