AFAIK if you make someone Global Mod on an SMF board, that person automatically has moderator rights everywhere. So you don't have to check the mod boxes for every seperate forum. The same goes for admins, by the way.
This will save a lot of space on the index, seeing that the moderator list under each forum will disappear (and none of the rights change anyway). That list is only useful if you wish to make moderators for only specific forums - only useful on large boards or boards with language sections.
So basically if I'm correct, Michaela will also have mod rights @ the Scripting Languages sections even though she's not listed there. If I'm wrong... well ignore this.