Lord Thane Because the way it is right now, halving the attack power of both kingdoms only favors the bigger kingdom with the stronger army. Which is why Cyber, Nolio and the rest of the top 10 sit on it for defence. I did when I was up there too.
When you get bottom fed on QR, you still get zeroed, but you don't actually do fuck all to the invader because your attack power was halved, so its a pointless strategy in that regard.
The point of switching to a 50% of your force fights is twofold.
Smaller kingdoms that want to use it get to retain 50% of their forces (instead of 0) when bottom fed. Right now, they are getting zeroed on it regardless if the attacker has a big enough army, which is most of the time. It also makes gangbangs to wipe armies slightly smaller by making the lose threshold hit sooner.
It stops being useful for preventing smaller kingdoms from upfeeding (as the big guy turtling on QR has more than 2x your attack anyways), and maybe it stops being the default defence strat, making people have to consider their options a bit more.
I don't personally think it needs any more than that myself. I think to add anything more, like this whole thread has been about, is overthinking the fuck out of it.
To Truphs point about the no retals - I think that's just way too harsh
Zones's idea about an auto lose has so many loopholes for abuse to zero out a kingdom
To Skigglez point about greater land losses on it/it needing a harsher penalty - I don't think its necessarily needed. Half of their army is going to be wiped and they will lose the battle. Yeah MC/clerical magic means less losses sure, yeah they might take the retal but if you oversent then you aren't losing that much anyways when they take it, as your army will be gone.
Adding anything else to it slows the game down even more, and is hunting for a perfect solution that is just going to result in nothing happening. If we just change the 50% attack power to 50% units fighting, then its probably not perfect but I think it's better than what we currently have, and that's a step forward.