Recently, many people have been discussing liquidation of leverage, but often it's not that your direction is wrong; it's that the oracle price feed is lagging behind. The on-chain matching/DEX prices have already jumped, but the oracle is still using the previous round of data, and the risk control module calculates margin based on the old price: it doesn't alert you when you need to top up, but it liquidates you first when it should not, or vice versa. Someone arbitrages and drains the pool before you realize. To put it simply, during liquidation, what matters is the "price recognized by others." So now, before opening a position, I check what oracle the project uses, its update frequency, abnormal fallback rules, and whether the team has permission to manually change the feed source. On Layer 2, they compare TPS and fees every day, but I care more about not treating oracle feed delays and cross-chain message queuing as "normal fluctuations"... Anyway, when something goes wrong, the blame is ultimately pushed onto the users.