Comment anywhere

• Chrome extension?
• Genius-style highlight a section and make a comment
• Drawn from Reddit too?
• Pull in references from your favorite blogs
• Crawl eg Scott Alexander, Tyler Cowen linkposts
• Reverse linking, finding back pointers

Challenges

• What happens if the page changes

Inspiration/Research

• Oh, this exists — was on that thing I commented on
• Did they even send me an email to notify that something got accomplished?
• And I’m not using it. Rip.