The GoW doesn't really have someone like an "official speaker"... Hoikas is the admin and mod of this forum and the server, but that's about it. So I'd say the people "in charge" are the guys doing the work, whoever is stepping up and saying "I have this nice tool" or "I want to show you how to do this in Blender" or whatever fits in here. New subforums are created as people start discussing a certain subject more often here (most recent example: 3ds Max plugin). Nor did I ever hear of formal membership, let alone ranks, here.
Regarding the plugins, there are two of them: PyPRP, working in Blender, and the 3ds Max one from Cyan. I used neither of them, so I can't really comment - but if you want to know what can be done with PyPRP, have a look at the ages in UAM

(okay, some of them use some handwork as final touch, but it's really mostly just the plugin). The guys using the 2ds Max plugin seem to do some progress and figure out more and more functionality.
The current PyPRP however won't work with the upcoming Blender 2.5, so work is going on on a brand new version, PyPRP 2. I think it's currently only Lontahv working directly on it, but he's using a programming library to deal with Plasma engines (Uru, MOUL, Myst V and so on) called "libHSPlasma", which is mostly written by Zrax, but hacked on by many people. But I guess this is getting too technical for you anyway

.
You are hackers and therefore bad for uru, right?
Is there an "official GoW" answer to that? I doubt so

. However I usually try to make people aware that it was the actions of these "hackers" that kept Uru alive, that made Cyan release UU (at least I was told this was a reaction to Alcugs), that brought us all the fan ages, that allowed us to play MOUL ages while there was no MOUL. So, well, I'd say all this can't be THAT bad. But after all, I may be a bit biased
Oh boy, I hope this does not end in a flamewar.