balanceTags doesn't understand namespaced tags
|Reported by:||Otto42||Owned by:|
Try to put something like this into a post (with unfiltered_html enabled):
<test:something> garbage </test:something>
If the balance tags option is enabled, it will mangle this content into this:
<test :something> garbage </test>
Reason: Balance tags doesn't understand that colons can be part of tag names.
This makes using things like XFBML (part of Facebook Connect) in posts very difficult.