User blog comment:BertH/Discussions Plans for the Rest of 2017/@comment-25947592-20171122171442/@comment-5275700-20171122190510

When migration occurs, it’s the HTML from the Forum threads that gets reproduced in the Discussions posts. So the posts will look very similar to the original threads, visually, with rich text formatting preserved.

This was mentioned in my previous blog about migration but that statement did not make it into the FAQ so I just added it there.