The blockchain has been congested like rush hour these days, I can spend half a day in the mempool (transaction queue) just to send a regular transfer. You think clicking confirm is the end of it, but it's actually more like slipping a note behind a pile of documents at the window—whether it gets processed first depends entirely on who’s willing to pay the “priority fee” and who offers a more attractive “queueing fee.”

Not to mention the complaints everyone has: validator income, MEV, fairness of transaction ordering... Honestly, during congestion, you're not competing with the market for time, but with an invisible set of ordering rules. I believe in the process, but the execution details are too “human”: add a little fee, and your transaction might be prioritized immediately; don’t add one, and you can only watch others cut in line. Anyway, I only dare to send important transactions in batches now, the rest I leave to chance—if it gets stuck, I just consider it a tuition fee.