From @Rossen : Private message from Aurumcoin to me, today in 23:36 GMT+3 via FB

Quote
AurumCoin
We consider to acknowledge AU and back it with gold.  The AU community need to donate at least half of the amount of coins worth of gold from the 300K AU in BTC or in AU. you can collect yourself the coins from AU community. We hope they trust you to collect it to your donation address that is your address not ours. We will see that you collect the amount in the blockchain then we can back up all the 300,000 AU coins in gold for the  AU community donation.It will be publish if you have success. We know its not a simple task but it worth the effort since all the coin will be backed in gold. Our official  coin will be backed by gold and we hope that your community will participate in our upcoming Indiegogo campaign! Good luck!!

Important notice!!

After reading what aurumcoin.com wrote to @Rossen I understand that partial backing is not impossible they need to back up all 300KG!
Butt!! it is possible to back up even if we dont collect 150,000 AU and its depend on AU value
for example if 1 gr of pure gold=0.06 BTC
and we collect only 30,000 AU and value of AU will raise to 0.6 BTC and we give them the 30,000AU and they sell them they can back all the 300KG
so the community not only need to give donations but also not to sell AU in lower price than 0.6BTC (If the communty donates 60,000 AU the value can be 0.3BTC to back up all the coins with gold)
thats for the good of the coin and the good of the community.
please respond, donate, and tell me what you think!!