Earlier quoted context omitted.
The fact that the entire source code is displayed on the page for all to read seems to have escaped you. You make a valid point in general, but the site in question practically screams the same message. I don't get why you have a problem with this particular project.
I think he means you should at least read the code on the other end of that URL to make sure it matches what's on the site.
I just don't get the mentality here sometimes; someone creates a helpful script, puts the source code on their site for you to read and study, and the first instinct is to assume they have malicious intent before even taking a few minutes to read over it first. Hell, I'm no programmer but I know enough about the basics to follow exactly what the code does. It took me all of five minutes to decide that it flips two switches and nothing more. That the programming gods here can't or won't do that is telling.
I get being paranoid about random scripts, but this one is on display for all to see before running. There is literally nothing hidden, yet you all act as if the author is trying to secretly take over your machines. It would be funny if it wasn't so pathetic.