What's the padlock mean?

I noticed the vile thread has been locked down. I've never seen that before, the barn door was open for so long and now you've locked the horses out.

Going back to the locked thread, Vaa said;I miss MACroof too. As the one that the most abuse from Mac was directed, I find this quote interesting. Sure you did a great job of holding your own against him, Vaa. But I was totally unaware that you were enjoying it. I miss him, too.

You just need to swing that BFH a little more often and harder!

That's a shame, I had just figured the mystery out and had the season-ender to wrap up all the loose ends and now the show is cancelled.