I forgot to attack this last round of GA, so did my opponent. But it counted as a loss for me even though I have more GP. I thought if no one attacks, the higher GP wins?
Been there, done that, and this is why I attack 1x as soon as I can, and then if I have time come back later for full review & attacks. Learned the hard way that work meetings can cost you the entire GAC if you forget to attack in that last couple hours.