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   Please tell me that people will not be able to friend me without my consent. I dont care to be tracked across servers and factions except by a couple people I know IRL.
This is correct. No one outside of your faction on your realm will be able to communicate with you unless you accept their friend request, or they accept yours. You will still have your normal World of Warcraft Friends list, but well be adding in the ability to have Battle.net players on your Friends list as well. The characters on your Friends list will allow the same communication functionality which exists today. Its only when you"ve confirmed someone as a Battle.net friend that you can take advantage of the additional communication features.

Well get more into that soon, but its safe to say in advance that you shouldnt accept a Battle.net friend request from anyone you dont know, similar to Facebook or other social networking media.

Edit: Im going to change the title slightly and move this to the General Discussion forum just so theres no confusion about whether or not this is a feature coming in Cataclysm.