You have to actively turn the reporting on, it is not the default. It isn't a hidden option either, it is the very first one on the configuration page.
And they downplay the sales angle [1] and fail to mention that they sent every url you visit back to their servers in the clear [2]. That's fine if it doesn't bother you but it strikes me as shady and disingenuous on Ghostery's part. Anyone who feels likewise should check out Disconnect [3] which is open source and breaks fewer sites.
[1] Although not as egregiously as in the past. Here is how they originally pitched GhostRank: Ghostery provides reports to Evidon about advertisers and data collectors, which Evidon then provides to regulatory agencies like the Better Business Bureau (BBB) and the Direct Marketing Association, parts of the Digital Advertising Alliance (DAA)[2]. These agencies then use those reports to monitor how Online Behavioral Advertisers operate and, when needed, refer them to the Federal Trade Commission.
[2] http://wtf.cyprio.net/ghostrank-logs-every-visited-url-in-cl...
Is the opt-in feature noted here [1] what you're referring to?
https://www.ghostery.com/faq#q16
"GhostRank data helps them market to consumers more transparently, better manage their web properties, and comply with privacy standards. "
And when GhostRank is enabled it isn't perceived as being a bad thing by the advertising industry:
“When a new web tracker comes on the scene, they often want to be listed in Ghostery. It’s proof that they’ve arrived and have influence"
says the CEO, at
http://venturebeat.com/2012/07/31/ghostery-a-web-tracking-bl...