Brooklyn comedian Tom Sibley talks to NYCTracks.com about his popular, but controversial, blog Subway Douchery.

The site exposes riders who violate the subway courtesy code. Sibley’s iPhone has captured people clipping their toenails, dropping food on the train floor, and even lounging shoeless across the train benches.

For many New Yorkers, it has become an outlet for their public transit frustrations. But some take issue with the site, calling it an invasion of subway riders’ privacy.