i have seen on other forums that they offer members the option to sort of keep a blog on the forum. How did it work? One could decide the name and description of the blog and the mods created an invisible/protected forum subsection (=the blog) for this user. I guess the user was then set to be admin of the group of this subsection/blog so that he could allow other people to see it if he wants to, invite others to the group and so on. It might be helpful for people to keep a "dhamma diary" of their progress and it may provide an opportunity to better get to know each other.
edit: Of course it would also be important to know whether there is a demand for this feature here.