This is no discredit to players of these nations and their conduct.
"NAVAL ACTION IS AN EXCITING, REALISTIC, AND BEAUTIFULLY DETAILED NAVAL COMBAT GAME IMMERSING PLAYERS INTO THE EXPERIENCE OF THE MOST BEAUTIFUL PERIOD OF NAVAL HISTORY - WHEN SAILING SHIPS RULED THE SEAS. "
So why we're Prussia,Russia and Poland added to the Caribbean server? Is it just to test certain mechanics and they'll be removed before release?
As per your description you have taken the time to develop a beautiful Caribbean map with historic port locations,distances and ships from the age of sail. Adding Russian,Polish and Prussian only drastically shifts NA away from the history and immersion you've attempted to recreate and represent.