Is that supposed to be the DPR stash?

If so it is rather interesting that all of those funds have now moved.

One of Satoshi's wallets perhaps? It is ~US$90M @ current rates

The DPR is 144K : http://bitcoinrichlist.com/top100

modern form of "the revolution will not be televised"

https://en.wikipedia.org/wiki/The_Revolution_Will_Not_Be_Televised

There are many people having a look at the blockchain.info page of an address that big.

So these small amounts are just attention whores, beggars hoping some idiot donates to them, people advertising their crappy sites, some even linking to a scamming site, etc. Sometimes the messages are funny though.

Wow that is a awefull lot of coins!

Hopefully not a exchange moving online wallets content to a offshore bitcoin account. 

Great to see, people are watching the movement of coins on the blockchain.

Yes - I get now that the small amounts were being sent in *order to leave graffiti" - funnily enough I was actually one of the people who first requested blockchain.info to allow messages to be added to txs (in order to tag "tasks" for my own system - although I never ended up actually doing that).

how people can store all bitcoin in a single adress  ...  it's insane in this world !
use multi-wallet to store multi-amount (like 15x 10k BTC).

Doubtful that the entity that owns that private key also wrote that message.