flickr's interestingness ranking has always been fickle and unpredictable, but I just took a look at a bunch of the photos in the current "7 days" interestingness section, and it's just confusing how some of the photos get in there. I suppose networking and gaming has a lot to do with it, but they seem so formulaic. Step 1: get a cute girl (or, if you happen to be one, shoot yourself). 2: pose seductively. or oddly. whatever. as long as leg and/or cleavage is visible. 3: tag the hell out of the photo. 4: profit.
if interestingness somehow indicated the real "interesting-ness" of a photo, in terms of quality of composition, aesthetics, or anything other than "gollllly, that's a purty pic-ture!" it would be, well, interesting... but it's really not.