Greyghost, you're coming at this from the wrong angle. The most experienced and knowledgeable members (this having nothing much to do with membership "seniority", BTW) are almost always the wrong persons to be writing Wiki pages. Yes, they like chatting away and arguing in the forums, and often drop useful information this way and that. But generally they don't *like* to write, in the sense of writing up a subject as you'd do in school. And if they do, the very fact that they understand the subject well makes it hard for them to explain it at the level of others who don't, not assuming some things are self-evident or well known, etc. Finally they could be be using their precious time for better things, like criticizing Nokia, flaming away at clueless newbies... or coding :-)

As I said a few posts earlier, better results can be achieved when it's someone who didn't know the answer, but is interested in it, and actually *likes* writing, that sums it up in the Wiki... So don't fret that you're not "senior" enough, or not technical enough : those are actually qualities in this matter, so dive !

There goes a).

As for b) it's a simple matter of human psychology. A hundred thousand wiki pages don't bloom overnight because creating structured information on anything out of a blank page is *hard work*. OTOH, criticizing is easy. So is reading up, tssk-tssk'ing and correcting a bit here, adding a bit there.
You'll see that if you go to the effort of summing up your own understanding of a topic in a new page, then post a link to it in the forum asking for corrections and contributions to it, you'll almost always get more "peer review" than you bargained for :-)

Are you out of your mind or something ?

edit: and about that multi-terawatt laser on the Moon, I have another idea for it... :-)