It wasn't inadvertantly, it was on porpose
Did you hear that noise? That we me groaning from the other side of the planet...
Sorry, couldn't help it. It was just hanging there and it didn't seem like anybody else was going to make the joke.
I thought about it - I had a whole series of come back replies when people "whaled" on me, and how I was "fishing" for +1s, and hoped it wouldn't "sink" my rep - but I resisted.