Lately, watching those "sandwich" "arbitrage" trades on the chain feels a bit like watching a crowd on the roadside: you think you've scored a bargain, but you might actually be paying a toll for others. Especially when slippage is large and rushing into hot pools, the trade feels good at the moment, but when you recalculate the net value, it doesn't quite add up.

I'm now more willing to break down "opportunities" into verifiable signals: the same group of addresses repeatedly eating the same type of path, always being right next to you in the block, gas surprisingly willing to be burned... Seeing these makes me hold back, preferring to earn less than to become fuel. (I admit I've been caught a few times before I learned my lesson.)
Additionally, recently some people said that on-chain data tools/tag systems are a bit lagging and might even be misleading. I agree: tags are just for reference; if you really want to act, you still need to watch the raw transaction flow and pool changes. Don't be too superstitious about "labeled" data. Anyway, there are plenty of second chances—better to stay alive first.