Even then, colony frigates will still not be useful, since they have such ridiculous AM regeneration. 1/2 AM per second is simply awful, and really just makes the colonizing caps that much better. >__<
Yeah, but that AM regeneration would mean less if you would still have to wait that 3-4 minutes to colonize another planet. You would be able to build two colony frigs and colonize without much downtime compared to a colony cap, simply because the cap would be at the same, big cooldown.
I know how to use turrets to kill militia, trust me. I adds even more crappity to this crap, cause you can just invest 650ish credits and the rebels will just kill themselves off on your turret (that you can scuttle later to take back 25%/33% of the cost).
All of this means - any sort of military start is all but shooting yourself in the foot.
Either you colonize like a crazy f**k (which you don't need a fleet for at all - repair bay, turret and no rebel is ever a problem) or otherwise you just lose. You don't need a single frigate (except the construction frigate) to colonize every stupid neutral planet on the map. Why would you need any fleet for that, when all you need is to build a repair bay, a turret and the rebels are just gonna shoot at them until eternity passes, or until you blast them out, by the way of moving your 40 HCs through the system three hours later.
So, if you waste money on frigates in the first 10 minutes of the game, you're just wasting the money you could be putting into asteroid and planet developments. If you buy 10 frigates (non scouts ofc) in the first 5 minutes, you take away from yourself the ability to produce 50 of them about 20 minutes later.
What makes it even worse, colonizing a planet takes a "click" amount of time, while un-colonizing it takes YEARS.
EVEN WORSE - destroying a structure takes so long that the enemy will likely colonize two more planets and build two more of these structures in that time.
You can begin with 20 LRF from the start and rush-wipe the enemy homeworld, but in that time he's gonna have 10 more planets, double your economy and all the structures rebuilt elsewhere, with his own frigs pumping out twice as fast.
There's just no point in doing anything other than this stupid krosov-colonize-jump-krosov-colonize-jump-.. spam crap.