I used to think that "cutting in line" on the blockchain was far from me; anyway, I just clicked a swap, and as long as it went through, that was fine.

Later I realized that the biggest impact isn't the sense of "fairness," but your slippage and mindset: you think you're trading at the price, but someone can see your order in advance, squeeze in front of you, and pull the pool price ahead, causing you to pay an extra fee for no reason.
You then mistakenly think you're slow or misjudged, and the more annoyed you get, the more you want to recover—it's that frustration that explodes.

Recently, meme and celebrity shoutouts that shift attention are even more obvious; newcomers rushing in are most likely to be the last to act.
These tokens often have shallow pools and high volatility, making it cheaper and easier to cut in line and harvest profits.
To put it simply, don't treat "being cut off" as some kind of mysticism; there are only three things you can do: chase fewer hot trends, keep your orders small, and set acceptable slippage and stop-loss levels.
After placing your order, go to sleep—don't gamble on the chain out of frustration.