Simple. In my previous post I asked you to provide your discussion with that character for, as you described it, it looked like a very “lively” and “informal” debate. As a joke I added that I would surely use some phrase in that debate as my signature.
And what do you know, the thing was lively and informal, and I actually could find something that your opponent wrote without figuring out what a praise to the Austrian Schools it was. So, as a man of my word, I changed my signature accordingly [:P]