Earlier quoted context omitted.
I'm not so sure it's wise to call G+ a "dead" social network. According to recent research by Pew, it's more popular than Twitter and just as popular as LinkedIn. http://www.journalism.org/2014/10/21/section-2-social-media-...
It's currently impossible to create a Youtube playlist without a G+ profile. Every time I want to create a new playlist, I create a new G+ profile, then delete it immediately afterwards. It is tedious. I'm sure many other people, when faced with roadblocks like these, create a do-nothing profile but don't bother deleting afterwards.
Just sayin'..