Wow, it is a huge number, bro. If you transfer some tokens valued thousands of dollars and can take profits above $1000 by transferring it, $300 for transfer fees is no problem. This is likely to do by people who arbitrage, but it needs a fast transaction between one exchange to another exchange. But for people who has a small number of tokens valued less than $500, it is better to wait for the gas price to decrease. Sending the tokens with the gas fees of about $300 will hurt so much, especially when the token price is decreasing when the transaction is successful.