How do you determine online-ness of a node in order to reward it? By IP address? What happens if someone spins up 5000 VPSs to collect airdrops?
1.reward by a node's total online time, example: a node with 10 days online time and 10 nodes with 1 day online time each, they have the same probability to get airdrop.
2. By IP address? yes, one IP for only one node.
3. In early stage, if some guy run mass nodes, he may collect the majority airdrop. This is really bad. It's why only invited nodes can get airdrop for the first 6 months.