I just took another look at the mempool, and that "queue hall" feeling is pretty strong. You click confirm, but actually the transaction is first thrown into a pile of unconfirmed baskets, and miners/packagers prioritize those that are more "urgent" (in other words, those that pay higher fees) to go first; during congestion, it’s more like a line-jumping scene, your transaction might stay stuck, or even expire and be returned to you, and on the chain it looks like nothing happened.

I thought adding a little fee would be stable, but I still got pushed into the corner by a big order that suddenly came in behind… Watching the pending for those few minutes is really nerve-wracking, the mentality is more expensive than the fee.

Recently, there’s been a debate about social mining and fan tokens, and attention as mining sounds very mysterious, but in the mempool, attention can indeed be "mined away"—everyone is watching the same path, the more they watch, the more congested it gets. Anyway, I now avoid moving during congestion; I’d rather go slower than add price along with the emotions in the queue.