I agree with fursphere, Nothing is private and if you think it is your wrong.

Things I do not like about the forced battlenet merge is first the 8 game limit. So each time I fireup a couple of RAF accounts im going to need a new bnet account for them because im not going to put throw away accounts on my main bnet account. There just wont be room with 5 wows' D3 and SC2

Second, I find the Bnet log in to be significantly less secure than the old log in. Previously I had 5+ unique log ins. now its just an email address. I did fire up a new email account just for bnet because to use your normal one is just asking to get your stuff stolen. Get an authenticator you say? See below about selling you something you shouldn't need to begin with.

As for the rest, data is power. Yea they already are tracking all of your blizzard habits and prolly are using that data to sell you something or sell the data to someone else to sell you something or offer you free trials, hoping you will buy it to get your money. Capitalism at its best!