The other day I had the idea to make a website that uses recent paparazzi photos to let you know in real time whether or not Jonah Hill's fat. And thus, isjonahhillcurrentlyfat.com was born
The maintainer of a GitHub repo I starred years ago just opened an issue and tagged every single user who starred it, meaning I just got about 25 emails all at once notifying me about every comment made in the thread. At 2 am.
@bondman Tweetstorms are pretty common on twitter from what I've seen, especially with journalists. Definitely a niche sort of app though. I'd be willing to bet this feature will be implemented into the twitter app itself at some point