I love that you can destroy your capital, but it brings with it some issues.
In that it allows you to build things you wouldn't normally be able to build. I'm playing as the Yor.
Also, I can't build population for some reason (before destroying the capital, and moving it anyway). Maybe because I'm over the limit? But a pop cap of 3 seems very low as the starting planet.
I don't think you're supposed to be able to build these on your homeworld: