I actually just had a weird quoting error and a comment someone made in talkback earlier now makes sense.
I was trying to post a quote, so as soon as I hit paste, the screen went wide and couldn't let me scroll back to the left so I could see what I was posting.
I hit preview to see what happened to the post, and at the very end of the post were the words
"null null null"
they didn't show up in the final post, but I thought it was weird that it showed up in the edit window.