maybe that is the owner of http://middlecoin.com/ ? and all the miners on his pool are one user on the other pool (most profitable scrypt pool at the moment ? 
https://bitcointalk.org/index.php?topic=259649.1560
maybe LTC was most profitable at the time picture was taken ?
https://bitcointalk.org/index.php?topic=259649.1560
maybe LTC was most profitable at the time picture was taken ?
Plausible, particularly if all the work is being routed through the one account.