The staff at Newsvine rely on user reports when there are Code of Honor violations and bugs. There's absolutely no way for a small, or even a large, group to find and fix all the issues that arise from the user-base. Submitting reports is your duty as a member of this community. In fact, that's how it was designed. Aside from unsubstantiated cries (that these mostly come from rabble-rousers and their supporters is not surprising) against the integrity of the reporting system, it works extremely well when used properly and is crucial to a well-functioning Newsvine.
Unfortunately, when it comes to groups, administrators don't have the luxury of receiving abuse or error reports, and group members don't have a quick and easy way to alert the "staff". This requires the admins to sift through all the content coming into their groups and it's clear that many see this as an unnecessary or pointless activity.
Even for those few group owners that regularly read and sift through group content, help is needed. Time isn't always plentiful and when reviewing large amounts of content/comments, the minor stuff, like making sure group-specific tags (i.e. foto-friday) are present, gets overlooked. No matter how attentive to detail these group managers are, something is always missed.
Theoretically, the user-base should make up for these deficiencies. Sure, group violations technically fall on the shoulders of the owner, but on multiple occasions, it's been voiced by a disconcerting number of users that reporting CoH violations is tattling or cowardly and should not be done. This does the community a great disservice. Newsvine is not in danger of becoming Nineteen Eighty-Four (no one is forced to live in this "society"), nor has it ever been the playground, nor are the rules unreasonable (in fact, they were created by the community).
Besides that, this is the Internet, not real life. The same standards don't always apply.
Reporting is easy. At the top of every article and next to every comment is an exclamation point (!). Click that and choose the most appropriate option. Alternatively, you can click the 'Report Bug' at the top of the page to give a detailed report.
Articles inappropriately published to groups (or news sections) should be reported as 'Off-Topic/Miscategorized' and, if you're able, report it to the group admins for [hopefully] a quick removal.
A detailed article explaining how to use group discussions can be found here.
Not reporting violations allows them to develop into bigger issues, so, friends and neighbors, please help make Newsvine a better place for all (except the trolls, system-gamers and undesirables).