I agree with the Idea of Jaqueline that it is a good idea if we have a closed show board. It can be one which is invisible to everybody but Cleo, That way only the once that are open and to be judged are shown and that would take some confusion away.  As far as not judging goes, maybe one of the staff could be on that, if the judging itself has been longer than two weeks, give them a message reminding them of their responsibility. Some people have a long time a show runs, which is good sometimes because of the fact people do have RL and some just have weekends to enter.  But they can forget that the show still needs judging if there are no entries or few.  If a show is not judged for longer than 4 weeks Cleo or one of the staff could judge it.  Especially as said host has been online since the end of the show. 
As for entering shows, I have been slower to enter because RL has not been nice to me, but I am working on getting it back. I placed a show down now, even with price money, but I doubt I get many entries, as someone already said people tend to just join shows from people they either know, are on the staff or are friends with. It is a normal human thing.  I for one would not enter a show from someone I know won't enter mine. But that is just one or two. 
As for tack, which also has been a subject.  I do like a guideline for it. Seeing I mostly teach kids and not the highest classes, I tend to steal the tack rules from people who seem knowledgeable in it.  If it goes with kids there is mostly a more free range as for the color of saddle pad, as up to 17 or 18, most can't compete in the advanced classes of the profession riders ( I really said most, there are acceptions).