Ask HN: Extensions to help manage/enhance Hacker News (ex. tagging users)

I've recently started to tackle my Hacker News upvoted backlog and I'm curious if anyone has a system to manage their read posts/notes and also more importantly the users here as well. Right now I'm using a combination of pinboard/evernote but I really don't feel its that great...

I've also ran into some really interesting posts by certain users that I would love to tag much like RES for reddit. Right now HN doesn't seem to have a way to tag users?