It's annoying, like PunkBuster for example. I think it is meant to prevent people who have pirate and cracked copies from playing online, as their is no easy way to prevent single player. However, sometimes it will kick honest players because either their is some fault in it or it is too sensitive. Another example is the CD-Key for Battlefield: Northern Strike. For some strange reason, you have to register, then spend a month of your life nagging EA to manually register it for you. Seems like anti-Piracy gone wrong.
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