I didn't even think about this until I saw an article on the news about "hackers" utilizing EXIF data on photos posted to social network sites to determine the location of interesting subjects.
When dolphin resizes your images, it appears to do an effective job at stripping all EXIF data, to include the GPS coordinates that now get embedded from GPS capable devices (iphone, android, etc).
The only weak spot I have found is the 'View Original Image' link on the photo view page, this opens the original image in the browser window and viewers are able to extract full EXIF data from that file, unless the submitter had already done so.
If you want to remove the view original button, get rid of this action box in the database: bx_photos_action_view_original
This may or may not be a concern for your sites, but i'd say if you run it as a dating service this 100% affects your members privacy rights and exposes their location to unwanted eyes, in the perfect circumstances. I find that only 2-3% of the photos on my site come from a GPS capable device, so it may not be that big of a deal but something to be aware of.

