Have you ever tagged someone else’s photo on Flickr? I have, but usually only when I’m in it. I guess anonymous tagging happens more than we realize and so Flickr has now added the ability to see who added the tag:
Flickr has quietly made a big change to its tagging system, which from now on will show who added a tag to a photo or video. As Flickr’s Community Manager Heather Champ notes, this information was previously available through Flickr’s API, but wouldn’t show up on Flickr’s photo pages. With the new system you simply hover over a tag and you’ll get a tool tip that shows you the username of the person who added the tag.
Found via: CNET news.