Hey! What is going on?

I just noticed this at the bottom of all of my posts.

Authors get paid when people like you upvote their post.
If you enjoyed what you read here, create your account today and start earning FREE STEEM!
Sign up. Get STEEM

So where did this message come from and who is responsible for it?

If this is advertising do I get paid for this?

Please let me know about this as it is bugging me.

EDIT
Update: WTF? Now the message has disappeared from my posts.

Oh, God! Maybe I am slipping into a different reality!

Martha, get my drugs!