Seems to me that a whole load of people are putting enormous effort into this script, but the whole thing relies on its uptake, and that won't grow without some serious documentation.
So it could be that what you are doing may be the difference between people adopting dolphin or going to wordpress mu or elgg - both of which have gorgeous documentation.

Ever thought of mentioning the /moderators/ url for moderator login - it is a truly well kept secret that isn't mentioned anywhere at all, but see more is an essential piece of knowledge.
Good luck to you sammie - when I've got through with making this site I'll give you a hand if you like.