If combat in this game is about amassing fleets of hundreds of dreads or battleships, that seems nuts to me. If what I've read so far is to be believed, an undefended planet can hold off unlimited fleets of up to 15 dreads at a time, and that's with all attacking ships destroyed in the process. That means that attacking colonies is going to require maintaining fleets of literally hundreds of the strongest ships, which in turn means dozens of shipyards (assuming the ship limit is eventually enforced), etc.
It is currently day 6 or so on Aruru, almost a quarter of the way through the scheduled game time. I don't know about anyone else, but I am nowhere close to fielding that kind of power. In light of this, I'm not super thrilled with the progression of the game so far. I apparently can't even hope to take over the home system of a player who hasn't logged in since day 2. Oddly enough, a month is actually way too short a game time to have any meaningful interaction with other players. How many wars can you hope to maintain with those kind of fleet requirements?
This seems to justify my biggest concern about the game, which is that the easiest path to victory is to just hole up in your corner the galaxy and persue the largely "solo play" win conditions. Why would I waste resources trying to battle oth players when I could just focus on getting solar taps and nuking 12 stars without ever interacting with the other 150+ players in the game?