That's because YouTube still has value (although deteriorating rapidly with or without the G+ issue). G+ has none.
The effect seems to be more that people gradually reduce their Google usage. I've cleaned out my private Google account, deleted my Google+ and after I migrated my mail it will be gone and subsequently replaced by a new G+ account of which every single letter is completely fake.
The effect seems to be more that people gradually reduce their Google usage. I've cleaned out my private Google account, deleted my Google+ and after I migrated my mail it will be gone and subsequently replaced by a new G+ account of which every single letter is completely fake.