Ban goes something like this but I'm not sure of the first parameter or how to make it permanent:
/ban <something> <id> <time in minutes> <reason, one word if from chat>
Or if it's in the console
commandtoserver('ban', '', 623, 9999999, "You suck.");
Clearbrickgroup is for future use I think, when you're building with a team, that's why it generates errors every time you run it because the group hasn't been made yet because the group making isn't implemented.
BSD shows the "Bricks" speech bubble.
CancelSaveFileUpload cancels a save file upload that YOU initialised regardless of if you are sadmin or host
ColorTest shows the predefined chat colours
CreateMiniGame <minigame name> and then from there on it's trial and error but I'd guess that the second param is the colour id (I think)
Anything ending in INIT will teleport your view to some location somewhere in the level and proceed to give you a thrilling movie showing you all of the items in the catagory you selected.
If you are an admin and you run doUpdates every client is disconnected and runs the update checker. So don't run it. Especially if it's a non-dedicated server.
MagicWand is the Destructo, and Wand is the player wand
MissionStartPhase(x)Ack is used while loading to initialise datablock loading, then object loading and lighting if required. I think.
MessageSent sends a message but it's pretty useless considering it does exactly the same thing when you speak anyway.
RealBrickCount looks as though it is reserved for future use as it generally returns zero bricks. (I think)
ReloadBricks loads the last save file uploaded to you again without having to wait for it to be uploaded, it simply loads the cached copy.
Request(blah) is used by the GUIs to get lists off the server. (Again, I think)
SAD logs you into admin, so say the admin password was pizza, saying "/sad pizza" would log you in. SADSetPassword is similar however it sets the password instead of logging you in.
When looking at a location on an interior or the terrain, saying "/warp" will send you instantly to the location that you're looking at.
Hope I helped a bit too :)