Right. My view is, given the future setting where our characters are technologically advanced and have their own interwebz (GalNet), it makes more sense that the IGS be a forum in the modern sense with collaborative storytelling taking place ingame, in chat channels, in realtime.
I used to do the MU* thing, had a lot of fun with it, even when one of the three or four people I was RPing with regularly had a disability that made for very long times between poses. I haven't done the 'traditional' forum RP that a number of folks here talked about in the previous topic, but the way it's described reminds me of that - only slower. IIRC, it was suggested that the IC forum have an area dedicated to that style of RP - which I think is a good idea, so long as there is also the "GalNet Forum" venue primarily.
I think the reason why the DUST IGS tends towards 'traditional' is because very few people have keyboards with their PS3 consoles and the DUST Chat Channels do not provide for /emotes (last I checked, anyway), so most of the DUST mercs who didn't come from EVE to begin with aren't familiar with the way RP has developed in EVE. I expect that will change if/when Legion hits PC.