I'm a little skeptical. philipzhai appears to be a newbie, but take a look at the addresses he claims the coins were stolen from:

1CLn42dHFuXAd7o9bgrsCRmfDvLavRoxTq is over a year old and there are 121 transactions for a total of 5,657 BTC. In the first transaction, it received nearly 900 BTC.
1H4esgi6KwhDtVXZXJ12AS7QEwdeQighn4 has been receiving mining income for almost 2 years.

Do you believe that the original post was written by someone that has been mining for nearly 2 years and has more than 100 transactions worth 5657 BTC?

Also, avoid clicking on links in email alltogether, when possible. Just type the link manually.
Turn this into a habbit and you'll be a bit safer online.

There's no need to buy Terabytes of hard disks when the blockchain will reach that size, just install an alternative client like Multibit / Electrum / Armory!

Gifts are not reversible. They also don't have any fees.

However , if it gets reported that a gift was used while it was a goods transaction , the money shall be confiscated.
The buyer cannot get any profit , but if they are malicious , they can get your money taken away.

If doge holds its current price until the next halving I think the coin will have a long and prosperous life.