This is a small userscript I wrote (to be used with Greasemonkey and the likes) that allows you to store comments about HN users in local storage. It shows the comments alongside the username across all HN pages. It can help you keep track of troll accounts, etc.I'm by no means a JS developer (or a developer for that matter :), so the code quality might not be the best. The goal was to keep it small and easy to understand.