Hi there cafihapa. We tend to be pretty low key about most things here. You can post the way you want and not many people will call you on it. so dig up old topics or start new ones. though if you start a new topic about something we have beaten to death we will likely at least refer you to an olde thread, but even then your new topic will probably get a bunch of comments anyway. That being said, be prepared to back up arguments with text, especially if you tend stray outside the boundaries with your opinions. That is aobut the only thing we are dogmatic about. Nobody will fault you if you can support your postions with text. If you can't do that, any you have opinions you want to share, well, I suspect that won't last long.
As for a glossary, no such luck. Most of the morlocks around here have followed a jihad that has raged across at least ten prior Dune-focused discussion boards. There'd be no way to put it all into one handy page.
Feel free to try though if you like, once you have wallowed through this place enough.
And yes, "normacle" refers to the hacks twain dea ex feculentia.