Just now, I got curious again and looked into some swap paths. The more I looked, the more I felt that the so-called "queue jumping" on-chain is really just about who sees it first and who can push their transaction further forward. The biggest impact isn't from the veterans who monitor the mempool, but from ordinary people: you think you're trading at the quoted price, but then you get squeezed, pay a bit more in slippage fees, and assume it's just bad luck... It's pretty powerless.

I'm also conflicted about the ordering issue: on one hand, I think open markets mean whoever pays the fee faster gets priority; on the other hand, it feels no different from people squeezing into a queue for tickets. Recently, the testnet incentives and token expectations have driven everyone to interact wildly, and rumors about mainnet issuing tokens are flying everywhere. At this point, MEV is more likely to be amplified—more transactions, messier paths, and more chances to get eaten. Anyway, I’m currently trying to keep transactions small and avoid chasing hot topics. I’d rather be slow than become "someone else’s profit source."