This is a great idea for FB and Reddit. For HN, it's a tougher call for me, I value the topics and discussions a lot more than I do most other sites. But it is

This is a great idea for FB and Reddit. For HN, it's a tougher call for me, I value the topics and discussions a lot more than I do most other sites. But it is probably a giant distraction when taken as a whole. Slack is another one I've found myself trying to stop compulsively checking. I've been collecting a lot of public slack teams lately.