Not that long ago Google was posting tasks on the Amazon Mechanical Turk crowdsource job platform that asked people to visit a Twitch user account page which was provided to the worker.
They wanted to know if that twitch user had a link to a YouTube page.... they wanted to know if there was an email address..... they wanted to know if the user had had some sort monetization link on youtube.. and if there were email/twitter contacts.
I wonder if this has anything to do with that.
were they just judging how much overlap there is between the communities?
were they seeking out 'popular' people to contact them?