And for those of you just tuning in (like me) -- noprocrast is a setting in your hackernews profile (upper right corner). Turn it on and it will only allow you on the site for a maximum amount of time (maxvisit) before preventing you from using it for a minimum amount of time (minaway). It has to be turned on manually. The maxvisit 5 and minaway 240 would let you visit for 5 minutes every 4 hours. I just turned mine on and set it to maxvisit 10 minaway 240.