So if i have 10 btc , what stops me from claiming once , sending the coins to a new adress claiming again and then havin claimed with hundreds of btc even though i just own 10 ?
We are not so stupid

As soon as you move BTC from the first address, it becomes empty and won't earn you anything. What ultimately matters, is the balance of all your linked addresses when we make the snapshot of bitcoin blockchain in block 437000 (the exact block number subject to change).