Recently, many people have been scared by words like "data availability / ordering / finality." My main point is: can your transaction be slowly scrutinized and scrutinized by others? DA is responsible for "being able to check what you did later," ordering determines "who goes first, who goes later, who cuts in line," and finality is "whether this transaction is considered settled." New L1/L2 incentives boost TVL, everyone rushes in to mine, transfer, and sell, the more impatient, the easier to get caught... Basically, it's about providing others with a smooth profit curve. Move a bit slower, wait for a more stable block, tighten slippage settings, and don't chase hot spots for confirmation—those "invisible taxes" you pay less of are more than you think.