Since the spammers of the world "scoop" Email addresses from web pages, I have implemented this extra step to try to slow 'em down. If you are real live person and still want to send that Email to google_compute2004, then simply type the pass-phrase which is "20907" (those 5 numbers, nothing else) in the text box below and hit CR - a new page will pop up with the mailto link for you.
If you are a SPAMMER, go SPAM yourself!