"Level" is in the eye of the beholder. I, too, was a bit amused at the comments that Russ's photo wasn't level.
Some time back there was another thread with similar complaints (I can't remember whose photo it was or just when it appeared). What I do remember is that someone complained that the photo was obviously not level because there was a telephone pole that wasn't perfectly vertical.
My response at that time was that where I live, near Boston, I don't think I have ever seen a telephone pole that was anything close to vertical. IMHO, some people are just what I would call "level-peepers," analogous to "pixel-peepers."