Suppress underscore errors when not on the right page. Ideally page specific JS execution would take care of this.

It worked in Chrome because Chrome appears to magically infer some missing
arguments to methods. This is the second time this happened, should be more
careful about it in the future, because it causes confusion when features
work for some students but not others.

Convert expand/collapse into buttons and change default sort order to date. Buttons should be styled better but I don't know how to do it.

Fix accidental code formatting of abbreviated posts and put administrative buttons in the expanded content.

Modify jquery.tagsinput plugin to allow filtering tags, and filter tags by converting them to lowercase so the service doesn't just error when you submit.