If your playing TA, you can almost stop planets flipping to you by building the Mind Control Center. The state it is in at the moment, the only thing it does it make it difficult for planets to flip to you. You still will get an occasional flip, but it is very seldom with the MCC.

Heh. I'm not worried about my planets' flipping to enemies; I'm more concerned with my enemies' planets' flipping to me. I want to stop that from happening.

I guess I'll just mod the loyslty ratings on the various races in the XML files. That probably won't put an end to my problem, but will at least keep it under a bit better control.

I tend to play as humans, for the record. It seems way too easy to become a cultural powerhouse as the humans. Not sure what that is. Possibly it's just a side effect of my playing style.

Well then yeah, upping their loyalty should do the trick.