It has been some time this was in the making... and as of the beginning of this week RadEditor is the editor one uses to submit community content in MSDN. Here is a hasty screenshot I made for you:

To my best knowledge, this is the fifth Microsoft team that adopts the RadEditor, yet I believe it is the first team to use it on a public Microsoft site (besides, such an important one). The other teams using the editor are doing internal MS content, and since I have not explicitly asked for permission to list their names here, I ...