Looking at the charts:
https://dicesites.com/satoshidice
On Jan 11 they ostensibly lost 326 BTC, so that's probably where the drop comes from
That was this guy Underdog. See his statistics https://www.satoshidice.com/user/ed10cec930365a1af6db2225843f6e36
He plays always 0,25 btc.. but when he wins he has a leverage of hundreds and when he looses he only has 0,16 x .
So. He signed up on 11 of January and won 300+ bitcoins in one run... Hey...GIVE ME A BREAK>> the guy know the server seed...Do you not think?? I am not so savvy in theses things.. but it seems fishy.. Any opinions? Or an explanation of Satoshidice...PLEAAAASE