All my conquered home planets are abandoned newbie worlds with not a single colonized planet. I'm not going to waste too much steel colonizing them at this point... instead I'll just spam a few 50 cruiser fleets. And I think I'll use them to take revenge on a neighbor for wasting a few of my fleets on a botched invasion >_>
Is your name.... Oldry, by any chance?
My first colonies are getting Matter Synths and getting good, just had to visit them every now and then with a population boost.
Same; some of my colonies are now producing meaningful amounts of resources. And I've already started scrapping some upgrades on home worlds, shifting tax burdens to the periphery. Within a few weeks, I'll be able to scrap my home planet PD and put PDs in peripheries, which will free up tons of gold at home.