Full sending a bystander out of spite is so pathetic
Like I can maybe understand full sending on someone who's been an absolute prick to you the entire game and directly caused your loss, you want to take them down with you or at least seriously damage them, but full sending someone who didn't do shit is extremely petty loser behaviour.
This happens to me increasingly commonly now. A neighbor that I'll even have a peace agreement, but he'll start losing a war and full send on ME despite no provocation instead of the person actively cooking him
If youve realised your situation is hopeless then at least go out in a blaze of glory, full send the guy rolling over you. Or donate all your money to an ally. Attacking someone who isn't involved at all is just a pathetic tiny dick move to make yourself feel strong in the last moments of the game