Indeed, we can't actually detect "digging" at all. All we can detect is when dug outputs move for the first time. It's quite possible that he already has 500k CLAMs in his wallet, and is just spending them one output at a time. In other words, "digging up old CLAMs" doesn't leave a mark on the blockchain. To dig all you do is import your old wallet.dat file into your CLAM client. Nothing hits the network until you move or stake those dug CLAMs, which is what we're seeing now.

so theres no exploit to steal clams of others, just theres some big wallets with 100s of adresses right?

gpg: Signature made Thu 20 Aug 2015 09:42:31 EDT using RSA key ID 2D388C90
gpg: Good signature from "Anonymizer"

Incoming 0.0212 BTC!
Please wait ~20 minutes for 2 confirmations.

Done! 0.0208 BTC has been sent to 1YxTjC5HyDN6SXq41DKrc9b1SRQTBP5Vj

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

We guarantee that the address 1HgKJmZ1Tffa3XpJeoVLF9rGgncLxFeugj has been generated by Bitcoin Anonymizer.

The address is valid only between 2015-08-20 13:42:28 UTC and 2015-08-22 13:42:28 UTC.
Incoming amount of coins (minus fee) will be sent without any taint or link to the following addresses

1YxTjC5HyDN6SXq41DKrc9b1SRQTBP5Vj

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A new game you probably already know about:
Rocket League!

Grab a few friends and have fun outta end, this game is amazing.

I actually like the layout of blockchain.info. The page is informative with all the transactions listed. The only problem is the data is frequently wrong and I don't know when to trust what I see.

I also use blockr.io to verify what I see on blockchina.info. I don't like the layout in tabs. I need to click the "transactions" tab every time I use them. It would be nice if they are move the  "transactions" tab to the top, as the "first transaction" and "last transaction" info is pretty useless.

Blocktrail.com is another one I use. I only use it to view transactions because it show the priority score of unconfirmed transactions. I do hate them for logging how many times an address has been viewed on their site.