And what if I buy an anonymous Visa on Silkroad and I use it to buy bitcoins that I'll spend again on the site? Could I be traceable?
Steps:
1 - I buy anonymous bitcoins
2 - I buy an anonymous Visa with them
3 - I get illegal money on the card
4 - I spend them to get bitcoins
5 - I put these bitcoins on Silkroad
6 - I buy stuff on Silkroad
(That's not 100% my case, I'm just curious)
There's no need to do all that, just buy the amount of Bitcoin you need from LocalBitcoins then once you have them in your account go ahead and run them though a tumbler such as BitcoinFog. When you run them though BitcoinFog it tumbles them to help break any link back to where you bought them from. Once the coins appear in your Silk Road account from BitcoinFog you're free to spend them on Silk Road.
*CLEARNET*
www.LocalBitcoins.com (P2P, Escrow)
http://fogcore5n3ov3tui.onion (BitcoinFog)