Three addresses bought "Base is for everyone" before posting on Base, and have accumulated profits of about $666,000

According to lookonchain monitoring, three wallet addresses bought "Base is for everyone" in large quantities before Base posted and then sold it, making a profit of about $666,000.
Wallet 0x0992 spent 1.5 ETH ($2,370) to buy 256.39 million "Base is for everyone" and sold all 108 ETH ($170,400) for a profit of $168,000.
Wallet 0x5D9D spent 1 ETH ($1,577) to buy 82.86 million "Base is for everyone", and sold all 169.7 ETH ($267,600) for a profit of $266,000.
Wallet 0xBD31 spent 1 ETH ($1,577) to buy 131.92 million "Base is for everyone" and sold 109.92 million "Base is for everyone" for 148 ETH ($233,400), making a profit of $231,800.