I doubt very many people on HN care about broadcasting themselves to the public using things like Meerkat and Periscope either. Maybe as a consumer it could be interesting if people are showing things other than the crap they already show on Vine/Instagram (lame comedy, butt workouts, etc.).

I know Meerket recently pitched itself as a way to share interesting events (St. Patrick's Day in Dublin, The Running of the Bulls in Madrid, etc.) but what they think people are using it for and what people are using it for in reality seem pretty far apart at this point.