Obviously, multi-accounting is forbidden at any casino, that goes without saying. The giveaway is actually explicit in saying you are free to do what you wish with it. You can withdraw with never playing if you like. They are effectively just paying us to bump the post.
Also if you think this promotion giveaway is good then come back daily and post on this thread for an additional 0.05 mBTC to your account.
But I dont think members are able to collect this like faucet, just post daily then withdraw it once they reach the minimum withdraw. Especially with the latest btc price which is so high, if 777coin let this kind of activity means they are doing charity and it requires a lot of btc.