Why am I penalized for a successful defense?
I wake up, open clash, and see that my base successfully defended yet again, but unfortunately due to the 30% destruction rule, my clan castle troops are now gone, I have no shield, and I'm vulnerable for a secondary attack before I have time to re-arm my clan castle (I'm sleeping). This is extremely frustrating, and shows that there's no incentive to build a base for maximum defense, as without getting a shield for your efforts, and having your cc wiped out, I usually get follow-up attacked shortly after for total destruction. This is deep sea diving.
Why am I not rewarded with a shield for a successful defense of a full army coming at me and getting less than 30%?