Anyone want to work out the % of coins involved?
That is disturbing.
I noticed one BTC wallet, which is not active ever since 2009! (198aMn6ZYAczwrE5NvNTUMyJ5qkfy4g3Hi)
This is the number of BTCs trapped in the top 500 wallets, by the year of last activity:
Year 2009: 1 wallet & 8,000 BTC
Year 2010: 10 wallets & 47,466.93 BTC
Year 2011: 104 wallets & 408,009.50 BTC
All together, 115 wallets with 463,476.43 BTC in them.