Phil Johnson crafts a great expression over at Pyromaniacs: "Ersatz enthusiasm and crass tomfoolery".
Er-satz, Adj. Being an imitation or a substitute, usually an inferior one; artificial.
As an aside (one of those "asides" that takes up most of the post), isn't it annoying when you think you've coined a really great original word only to google it and find it already exists? I refer to my "lexiblography" idea, which frustratingly is already the name of someone's blog! Hence the slight extension for this post.
And then my original strap-line "porridge for the soul", which turns out to be a monthly networking breakfast in Canada. There is nothing new under the sun.
Except grupfrootsplakey; I just made that up.