""" Under these new rules, users can be warned or even suspended for simply “upvoting policy-breaking content within quarantined communities.” """ That's an interesting policy. I can see the benefit if one's goal, as owner of a forum, is to constrain the tone of the forum. I wonder how the tone of Hacker News, for example, is changed by users upvoting comments in clear violation of forum policy.
Currently I only collect submissions, but it isn't hard to also look at the users and their age/karma as well.