Social Media?
Possibly slightly more that Facebook and Twitter, Shirley?
If you do most of your on line posting on web fora and Usenet then there might be a very long list.
I do have a Twitter account but I think my only tweet was "O.K. What happens now?". There was no reply.
I may have a Google+ account as well. Don't you get one with a Gmail address? Hmmm....list of all my Gmail addresses and passwords?
They won't bother to check the accounts. This is just a form of gratuitous electronic rape to let you know that you are sub-human trash with zero rights.