Here's a new reason which RickDeckard flagged up here: https://bitcointalk.org/index.php?topic=5452900.msg62374464#msg62374464

The SEC has filed charges against Binance, and are ordering them to hand over all customer deposits, coins, assets, private keys, and anything else to the US government.

You are crazy if you are still holding your coins on an exchange after the shitshow of the last few months.