One thing that could possibly help is randominzing when new characters spawn during the disaster blocks. I might create a character right at the disaster, but he might now appear until 25 blocks later, or he might appear within the next block or 2. I think this would level the playing field and give humans a fair shot.
I've been in front of my computer and have created characters right as the disaster happened but I am still no match for the bots.
I am only picking up 10-15 percent of the coins, the other bots thus so far are not being created with the 2-4 block advantage. Most of them are set to go into the center where there are plenty of coins to pick up if you can survive.
I think the group taking 90% of the coins everyday is a bigger problem as far as the game play goes.
More players are needed, or harder working players.