A few days ago he sent an email to users of his sites saying they would receive 4 million satoshis (~US$10) just for signing up with Coinbase from the link on the email:
From: Bitcoin Aliens
Sender: Bitcoin Aliens
Subject: Bitcoin Aliens Has Sent You 4 Million Satoshi
To: Pedro Corbett
Date: Thu, 08 Oct 2015 11:35:05 +0000
You are receiving this email as you joined the Bitcoin Aliens Family [Alien Faucet|Weekend Bitcoin|CoinAd|Apps]. To stop receiving our emails simply click: Unsubscribe
Hey Pedro Corbett!
We're sending you 4 million satoshi - that's $10 worth of bitcoin, completely free!
Just Click Here to Claim!
It's really the easiest $10 you'll ever make!
Click Now to Claim YOUR $10 in Bitcoin
Kill Aliens, Earn Bitcoin
See you all soon!
Daniel D'Alien Bitcoin Aliens
I haven't redacted my name or email address because I don't have anything to hide and everyone who knows me from the game servers I manage already has my info anyways (including spammers).
When I didn't receive anything, I contacted him via
his Facebook page (I tried emailing him first but the email
[email protected] does not exist) and he replied saying "Coinbase would send me the 4 million satoshis after they completed their verification which could take some time".
There is nothing else to verify, I've even received and withdrawn Coinbase's signup bonus of 10K satoshis already. What he is doing is taking advantage of Coinbase's own referral bonus system which gives the equivalent of US$ 10 in bitcoin to both the user who invites another user and to the new user,
once the new user buys US$ 100 in bitcoins:
"Invite a friend who buys $100 of bitcoin or more, and you'll both earn $10 of free bitcoin!" (from Coinbase's site)