Here is another fun Google Answer, this one is spotted by Eric Enge and posted on Google+. A search for [how to change an air filter] responds with the main answer in bold at the top, reading "Unable to execute Javascript." And then it says Remove the old air filter. ... and then Install the new air filter. Got that?
Here is a picture:
Of course, when you search for how to change an air filter, you clearly need help installing the new air filter.
But JavaScript rendering issues may be getting in the way of that air filter installation.
Eric said "At least I don't think that Javascript is involved in changing an air filter ;->"
Forum discussion at Google+.