content: That's a rather strange scenario to use but otherwise your point is very valid. Personally I like to keep my accounts isolated for various reasons. I don't want my email account linked to youtube or social media for example. Google's system also sucks badly when you have multiple email accounts (which makes it a pain when managing situations like a personal and work gmail accounts) Account integration and Google's account switching system are not good for privacy or security and it makes it easier to accidentally send/post something from the wrong account