All users who want to move from IP.Board to xenforo have a huge conversion problem. For example, on our IP.board the blog feature is very popular and we can not just remove all blogs of our users for the sake of switching to xenforo.
Now you probably say, then why don't you use the better blogs addon or the XI Blog addon. Both addons seem to be abandoned, also they are not on the same level like IP.Blog and importer scripts for IP.Blog are non-existent.
Do your forum members really don't care about blogs? Or is coding a quality premium blog addon too hard to transform?