Why would you sound so alarmist?
You can do your stuff (flagging, upvoting, downvoting, expressing your opinion, discussing, pointing to rules and what not) without telling HNs what they should or should not do.
Please don't submit comments complaining that a submission is inappropriate for the site. If you think something is spam or offtopic, flag it by going to its page and clicking on the "flag" link. (Not all users will see this; there is a karma threshold.) If you flag something, please don't also comment that you did.