Jan 15 2015
I've been using Semantic Forms for more than 4 years now. It used to support the FCKEditor extension (and branch SMW+ supported the WYSIWYG extension).
But the decision to stop using FCKEditor going forward was at least related to the promise of a cleaner integration with VisualEditor (Yaron Koren would be able to
comment more accurately on that). I believe that was decided around 2012.