I've heard of people sending small amounts of BTC to the silkroad address the feds now have with messages attached, but there seem to be some larger amounts going in now too. today there was one for 12.15078995. there some in there for 136.47811354 and 59.2772818. what the hell is going on?

heres the address on blockchain.info
http://blockchain.info/address/1F1tAaz5x1HUXrCNLbtMDqcw6o5GNn4xqX#