Interestingly it is disabled for Google services (making the article's image irrelevant :). If this regex matches, `nofish` is set true, which disables superfish:

/^https?:\/\/(www|play)\.google\.(?!com\/analytics\/)/i

Also, if you add a <meta name="superfish" content="nofish"> tag, it gets disabled as well.

Possibly some agreement with Google, like the ones they tend to make with ad-blockers? (http://www.theverge.com/2015/2/2/7963577/google-ads-get-thro...)