Unfair gc challenges

I'm the leader of fire of dragons and we are regularly facing guilds with 2 million more fans! How are gc challenges matched up???
If you take the time to read the forum you'll see this exact same topic being discussed here:
http://www.sublinet.com/en/forum/topic.php?server=39&id=17667
Thank you. I have replied to the necessary feed. 2 million more fans is more than 20 % not less.