Benzinga and Yahoo Finance LLC may earn commission or revenue on some items through the links below. Renowned investor and "Shark Tank" personality Kevin O'Leary raised an alarm Thursday about Ethereum’s (CRYPTO: ETH) network congestion and fee spike over the weekend. Ethereum’s ‘Cracks Are Showing’ In an X post, O’Leary highlighted that Ethereum became severely congested, causing even small transactions to cost upwards of $1,000. He likened this to “paying a thousand-dollar toll to drive on a one-lane h ...