Not being funny but why would you want an editor on your wall? The wall is basically for leaving little notes and messages, not long formatted documents with photographs attached.
I just went to check on Facebook to see what they do but for the last couple of days, the site has been a slow as hell and I gave up on the end.
The more colorful/cheery/happening the community area looks, the 'stickier' it becomes.
I never mentioned long formatted documents, nor photographs, but coloredtext and would go a long way! (Case in point?)
We can't yet have a "myspace" type page for the users, but if/when we do, I'd still be nervous to allow such for security purposes.
But at least a little spice to the walls would be a decent compromise.
I've also got JOMsocial on my website. I find the forum very good so I suppose the lack of a conclusive answer from anyone does not fill one with confidence.
They have got Jom Social installed on the Kunena website. There are some pretty knowledgeable people on there that may be able to help you.