feedjit only shows the most recent 10 referrers and clicks, so I don't think theres anything there that'll give a 'competitor' some sort of strategic advantage. Besides, tehy can just google around and find out what I'm showing up for in the SERPS.
As far as privacy goes, as long as I'm not personally identifying people and showing what search terms they're using, I think there aren't any privacy issues. I see my own search terms showing up and my location 'Seattle, WA' and no one knows who actually searched that term.
I haven't really applied my mind to this as much as I should, but those are my initial thoughts and I'd love to hear if anyone feels different.
Mark.
On the other hand, why should anyone expect their searches to be private at all? If I wanted to share searches coming to my website and even group them by IP address, what's stopping me? What if I said I would do this in my privacy policy?
BTW, I've been thinking of a Feedjit type thing but for search keywords instead of location. That's what got me wondering about these privacy issues. I hope that idea wasn't in your future plans ...