2) "Fan Submissions" sub-category of "Sins of a Solar Empire" does not show up on the home page like the others. [not yet fixed, same thing with this sub-board]
As far as this item there are at least dozens of forums across Stardock's 12 different forum sites that have this same problem.
I refer to these as "invisible" forums and there may be more than 100 of them. One thing is that some of these forums are actually listed in the pulldown menu that's accessed by the down arrow at the right side of the top level forum listed in the sites category list (of course this only applies to top level subforums, sub-subforums are not visible using this method).
You can also see all forums accessible on a particular site by "walking the tree". For example if you select the Sins of a Solar forum and scroll down to the bottom of the post list then you see all of the subforums listed including Fan Submissions in the Sub Category list. If you do this for all forums and subforums on a site you will usually find many such "invisible" forums although naturally there are far fewer of these on the newer sites than on the old established sites like JU and WC.
You can also see that the forum exists and post to it by simply creating a post anywhere on the Sins site and use the pulldown menu on the post category.
But the most obvious way to see the forum is to see a thread that's in the forum scroll by on the recent posts list.
Like I said this is nothing new and something that applies to many if not hundreds of other forums scattered across SD's 12 forum sites.