Facebook comments won’t post
Tested on Safari Extension, though I can’t seem to reproduce the bug. (It refreshed the page, and didn’t post the comment, but I’m not sure if comments go through moderation first.)
See http://www.fcp.co/final-cut-pro/articles/1833-help-us-to-get-the-final-cut-pro-x-wikipedia-page-up-to-date for example.