I don't understand why people that say it's not useful or not interesting get downvoted, but the ones that say the opposite, don't. What's the logic in this?
A lot of things on HN aren't useful - there are games and experiments and little fun things all the time. And as someone else in the thread already stated, if you think a submission is uninteresting then not commenting or upvoting it is probably the best way to express that.
