When I use AJAX features, throw a request to a page, I receive also these new DIVs inside. :(
On the other hand, I understand that Gideon wants to make it clear that this is custom information by adding the DIV(s). However, I guess this is not necessary. Especially not if I am on a page that has been created by a plugin.
Btw, this is why I am always very careful if it comes to updates. They can lead to new problems and a lot of extra work :(