Do you think you're arbitrage trading, but actually you're just paying others' transaction fees? I often get fooled by this illusion too, especially when I see those fleeting price differences on the chain, and I get tempted to jump in with a quick hand. Later, I gradually realize that the most ruthless part of sandwich attacks isn't being "sandwiched," but that you don't even realize you've already become someone else's fuel fee: widening slippage, not checking routing, slow transaction speed—just a little delay is enough for them to strike.

Recently, before and after the upgrade/maintenance of that mainstream public chain, everyone in the group was guessing whether projects would migrate. I actually feel more cautious: these time windows are the easiest to cause chaos, as pool depths and MEV intensity change. The more it looks like an "opportunity," the more it resembles a harvest. Honestly, I now prefer to do fewer trades, but first make sure to calculate slippage, gas, routing, and transaction expectations clearly. Otherwise, I won't know if I made a profit or not, and at least I can keep transaction fees stable and consistent.