Based on the idea of the YouTube Comment Snob, this bookmarklet will filter Newsvine comments based on poor grammar, spelling, and punctuation use. This approach works quite well to identify comments that are just as idiotic in nature as they are in regards to the English language.
To install, drag this button to your bookmarks bar and click when you visit a new Newsvine page.
Old version: NVSpam
Please see the introductory article or the follow-up for more information.