Some where pounding it through proxy services and some once I contacted them regarding their content and image theft started not sending the referral string and common user agents. I spent about 12 hours combing through our logs.
It's a major MAJOR flaw. Competitors should ONLY be able to MAYBE see pricing comparisons and even then it really puts smaller companies at a serious disadvantage and is borderline corporate espionage.
Google does not clearly state in the Google Shopping interface that competitors can get ALL YOUR INFO including titles, pricing links to your products and links to your images through a publicly accessible API.
Here's some of what I've been going through:
The ones I'm dealing with are not using that user agent any more.
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