Hacker News Reader

They've always tagged the seized coins either with 'Silkroad seized coins' or 'DPR seized coins' in the past. e.g. https://blockchain.info/address/1F1tAaz5x1HUXrCNLbtMDqcw6o5G...

Who did the tagging?

Users of blockchain.info. It's a little obvious, the amounts they transferred are "FBI" when typed on a phone keyboard.