Last night, I checked my wallet records and found that several contracts still have "unlimited approval." Basically, it's like leaving the door open while sleeping—nothing happens normally, but if something goes wrong, it’s embarrassing. I used to be lazy too, thinking that revoking was troublesome and would cost some gas (even on low-fee chains, it still hurts), but once I just wanted to swap a coin to eat some noodles, and a few weeks later I remembered that the approval was still active... If that protocol had really caused some trouble back then, I probably would have been devastated on the spot.

Recently, there are always people comparing RWA and U.S. Treasury yields to the "rewards" on-chain, and I think even more that approval should be treated as daily hygiene: no matter how attractive the yield looks, giving too much permission actually introduces risk that you yourself have put in. Anyway, I now get into the habit of quickly checking the approval list after trading—revoke what you can, just like brushing your teeth, don’t wait until it hurts to remember.