I've just returned to Freebase after a few months absence. I've got to say that I think the removal of WYSIWYG editing for descriptions is a big mistake.
You state "WYSIWYG editing of rich text isn't supported at this time in the standard topic view in order to encourage topic editors to focus on writing brief descriptions suitable for viewing as a search result. The only formatting supported is the carriage return. More extensive information should be captured in property values, not in descriptive text."
Formatting is not the same as abstracting out information into Properties. What harm is there in a little helpful formatting (e.g. headings to break up the text into meaningful chunks?). Or hyperlinks? Or bullet points? This seems a case of a reasonable principle carried to an unreasonable extreme.
If I'm allowed to format this post, why not a Description?