On-chain data shows that LinkedIn co-founder Reid Hoffman is also a senior “big Ethereum user.”Currently, the ETH held in his public address is worth up to $6.1 million.What's even more striking is that he also has a "big guy" in his hands - the CryptoPunk NFT he bought last year for 150 ETH (over $400,000 at the time), making him a proper blue-chip collector.