Starfleet Intelligence Service same issue. Had 417 took it down 322 (got rid of stale accounts over 1 year since last login) still can't invite new members. We have 2 Sub Armada Fleets with 1 have a sub under it. Each has less then 25 members in those. Even with all sub fleets and SIS primary we have only 427 members now…
Just an FYI to help smaller fleets and those struggling to get commodities... Embassy Tier II Discount Commodity Broker is cheaper then the Tuffli Commodity Broker. With a Ferengi it is the cheapest in the game for those items.