I recently reviewed a First Post that began with "0 down vote favorite." I figured it was just some weird thing that was written in that question, but then I searched on Stack Overflow for the phrase "0 down vote favorite." It popped up plenty of questions and answers from different users that began in the same way, and oddly enough, none were down voted. Next, I tried an internet search for "0 down vote favorite." It showed Stack Exchange questions that began with that phrase, and some other sites with a similar situation. A search on Meta shows nothing.
Is this some internet phrase that I am missing? Is it some bug with Stack Exchange that prepends it to certain questions? Is it just people trying to say "don't down-vote this, please favorite this?"