Is there -any- logical reason for my ancestor to have done this?

I've inherited a network that reminds me of those pictures of the webs of spiders who were on various drugs.

​sh config returns the following gibberish:

ip route 0.0.0.0 0.0.0.0 10.0.0.1

Followed by 11 lines of ip routes that send 11 different 10.x.x.x subnets to 10.0.0.1, except for the 10th one which replaces 10.0.0.1 with FastEthernet0/0

Am I completely missing something here or was somebody a little less than rational when he programmed this thing?