Certainly what I will write here already many have noticed, I was looking for a topic that talked about this subject but did not find!
I have checked many player accounts that have been offline for many days, including alliance leader accounts.
I suggest that these accounts be removed from the game, and if leaders close the alliance if there are no more players in it. If there is leadership then it would pass to the next member with more trophies and assets.
I think it’s time for this game to take a “cleanup”.
If you want help I can even report some alliances that I find in this situation.
Example: More than 90d offline this account would be removed from the game.