I'm really happy that HN isn't your typical constantly-mutating, constantly growing news site, adding a new social share button and 2KB of new Javascript every week. Please, pg, don't start taking pull requests or anything like that, it's great the way it is.
Edit: look at the current top story. A pretty but not especially functional Facebook redesign, proposed as the latest in a long line of changes that the users pretty much always disliked. There's my point.
- You can't take away an upvote. Misclick is just bad luck
- user settings have some really obscure settings that aren't explained like showdead / noprocrast / maxvisit / minaway
- The "Unknown or expired link" is just a bad solution, either redirect me to the front page when that happens, or find an alternative way to deal with it.
That being said, I'd prefer no change to the HN system.