A few things: Having a GMail account does not require you to have a G+ account. If you have a G+ account you're not using, you can disconnect it from your Gmail in the account settings. Problem solved. Google drive doesn't have terms that grant them ownership of your files, and their terms are in fact better and tighter than those of DropBox regarding what they're permitted to do with your files. You have to be logged in to Youtube to thumb something up. If you're not, you're given a "sign in or sign up" prompt. I haven't seen what the new Like button pops up, because apparently very few people are seeing it, but I'd be surprised if it were significantly different from that. Happy to be proved wrong, of course, but emphasis on the word "proved". :)