What the hell is this in my Dashboard?
Update: I have had a son of a bitch in Comments call me a liar for posting this. I have sent an email to WordPress Support with a link to this post to ask for an official explanation.
Update 2: WordPress replied in both email and with a Comment. This is the email:
We’re working on a new feature behind the scenes here and part of the testing code we were using for it ended up displaying on everyone’s Admin Bar for a few minutes accidentally. It wasn’t related to the service interruption from later that day, and it was not a hack on WordPress.com.
WordPress.com | Automattic
So, the son of a bitch who called me a liar should basically go drink a glass of hydrochloric acid now.
Let me remind everyone again here that I don’t lie and I don’t create hoaxes. There are already people well-known out there eager to give you a trip down their river of psychosis. That’s how they make their money.