So this means the NSA can determine how often I've looked at Midget Porn sites???
Hey, wait a minute. I just realized something about this. I wiped my entire hard drive when I did that reinstall of 10.10.1 and my entire browsing history still showed up again.
So that means that iCloud is saving every URL you visit, in addition to it being local.
If you do 'clear history and website data', you then have to log into your account in iTunes. iTunes relies on a Safari cookie, which is archaic.
What's archaic to you is a valuable safety feature to me. I don't leave my iTunes account open 24/7. In fact, I will only open it long enough to buy something. I leave the iTunes app open, for apple TV purposes but not my account. IMO, that's just the prudent thing to do.