Re: exile limits
It was one of many changes made designed to prevent the top galaxies from always consisting of people from the same pool of about 30 players, who coordinated their exiles to effectively create private galaxies, and then used their influence (as well as their general ingame skill and activity) to ensure victory, sometimes at the expense of their alliances.
In the last few rounds, I've been hearing less and less about 'private' galaxies being formed. I admit that may be my shortcoming, but if true, that after 30+ rounds of attempts, indicates PA Team were finally successful.
I agree that the various types of exile limits hurt galaxies with lots of planets in it that flatly refuse to communicate. However, on the other side of the coin, if you allow galaxies to exile more, more quickly and/or more cheaply, they'll exile more, and the lower limit of 'how active/contactable/etc do I need to be to be in a reasonable galaxy' goes up. This excludes more people from the enjoyment of being in organized galaxies.
And if you were to say "but mz, you just took 3-going-on-4 paragraphs to basically repeat what Adapt already said!", then I'd respond "True.".
The outraged poets threw sticks and rocks over the side of the bridge. They were all missing Mary and he felt a contented smug feeling wash over him. He would have given them a coy little wave if the roof hadn't collapsed just then. Mary then found himself in the middle of an understandably shocked family's kitchen table. So he gave them the coy little wave and realized it probably would have been more effective if he hadn't been lying on their turkey.