Richard Bartle's take on Gamasutra is of interest for every person who works on virtual space. It is entitled Why Virtual Worlds are Designed By Newbies - No, Really!.

Virtual worlds are being designed by know-nothing newbies, and there's not a damned thing anyone can do about it. I don't mean newbie designers, I mean newbie players - first timers. They're dictating design through a twisted "survival of the not-quite-fittest" form of natural selection that will lead to a long-term decay in quality, guaranteed. If you think some of today's offerings are garbage, just you wait…
Point #1: Virtual worlds live or die by their ability to attract newbies
Point #2: Newbies won't play a virtual world that has a major feature they don't like.
Point #3: Players judge all virtual worlds as a reflection of the one they first got into.
Point #4: Many players will think some poor design choices are good.

I like his conclusion: "purist there will always be text MUDs."