Recently, I saw a bunch of "seems very promising" arbitrage opportunities on the blockchain. My first reaction wasn't to rush in, but to wonder: is this really an opportunity, or am I just paying others' transaction fees... As for sandwich attacks, honestly, once you confirm, you might already be targeted, especially if you set slippage too high. By the time you realize it, the transaction price is no longer what you thought it was.

Some people really trust certain on-chain data tools or tagging systems, but lately there's been talk about "lag" and "being misled." I personally don't dare to draw conclusions based solely on tags anymore; I just use them as reminders at most. My usual habit is: review the authorization first, glance at the routing, then verify the amount and address three times. I'd rather be slow than turn "opportunities" into someone else's transaction fees. Over the long term, it's not about talent—it's purely about sticking to good habits.