The loot from clan wars is great however how about a 1day/1gem cost to boost the miners awarded to the winning clan either after so many stars achieved or consecutive wins in war? Or maybe just add it as a clan perk as a lesser cost of gems for your clan to boost your miners? This would motivate the clans members to use their attacks and maybe prevent these farming clans I'm reading about from being so inactive as well?
This is wayyy too OP.
One of the reasons we have such a long preparation day is because SC thinks that the loot being rewarded to the winning clan shouldn't be given out quicker than 48 hours. Because of this, the 1gem/1day boost would probably not be something they are interested in giving out. Everyone would advance way too fast and use less gems.
Even as a perk, I don't think SC wants to give away that much loot. (this loot is coming out of their pockets).