[josephagoss]

The spam is the 1 Satoshi (0.00000001 Bitcoin) sent to players to confirm a loss, whereas a win they send a healthy amount back (The winnings)

At the moment Bitcoin cannot handle lots of transactions made with its smallest unit. This is being called spamming the block chain.

[EvanKelly]

I gathered most of that. My confusion was that people on the bitcoin forum were implying that performing loads of 1 Satoshi transactions was financially beneficial for SD somehow, as well as to miners.