EDIT: I probably should note that I don't use Tumblr and I don't know the full context of this image https://pbs.twimg.com/media/DXC71NFX4AAUPX3?format=jpg&nam

EDIT: I probably should note that I don't use Tumblr and I don't know the full context of this image https://pbs.twimg.com/media/DXC71NFX4AAUPX3?format=jpg&name=large https://pbs.twimg.com/media/DXC71NFX4AAUPX3?format=jpg&name=... I'm not a Tumblr or Twitter user. But it seems like Tumblr has a degree of identity verification going on with its users. ----- Even Reddit has these kinds of simple checks to make "Ask me Anything" a more legitimate-feeling experience. When a famous reporter posts a picture of Reddit-account name + face for people to see and do on an AMA, it helps verify the identity. (And if that's too much for the AMA user, having a trusted moderator do that kind of check can serve as a good substitute)