Ed Zotti isn’t the technical administrator. He hasn’t been doing things like merging usernames or adjusting Discourse settings because he doesn’t have the technical know-how to do things like that. And there have been efforts to get someone who does have that know-how the permissions to be able to do so, but that decision is unfortunately not entirely in his hands.
He is, however, the person who sets rules for the board, and resolves disagreements between moderators, and chooses who the new moderators will be. In that sense, yes, he is in charge of the board. If you don’t like using the term “administrator” for that role, OK, fine, call him the manager, or something, instead. But whatever you call it, it’s definitely a role that is necessary for someone to serve. Zotti served that role originally, in fact, for the entire period of time that the board was growing. Later, it was @TubaDiva. Now, it’s Zotti again.