nice! i had this idea in mind for a while but didn't see how to monetize it :) glad someone did it.

> We collect every new submission and comment from Hacker News, and once every 5 minutes or so (assuming I don't break something).

nit - you should decide if your tone is "we" or "I".

edit: another idea would be to add notifications for upvote/downvote you get. it's harder to implement so maybe just when your score changes...

edit2: why downvote? ️