In the hope you see my reply: LessWrong has a partial solution for this (possibly inherited from reddit). When you log in, you can see if anyone replied to on

In the hope you see my reply: LessWrong has a partial solution for this (possibly inherited from reddit). When you log in, you can see if anyone replied to one of your comments, and you can go to a page listing such replies. It is therefore encourages looong threads of discussions, much of which are worth my while in LessWrong. It is also possible to reply to years old comments. About the karma end of the problem, one could try to weight karma by the inverse of exposure. Right now, early comments are disproportionately voted up, while later comments can be nearly totally ignored even if they're very good. But that's a big change, easy to screw up (not to mention it may be a bad idea to begin with).