While browsing through data, it suddenly stutters, and then I realize it's the indexer syncing a new block—pretty annoying.

Recently, people have been talking about on-chain tags lagging. Actually, the underlying principle is the same—what you see as "real-time" is often second-hand time processed by someone else. Subgraph delays of a few minutes, RPC rate limits throwing errors directly—you get used to it, but when doing risk control, you have to factor that in.

Now when I look at the collateral ratio, I deliberately leave a buffer, assuming the data is half a beat slower than the real on-chain state. I'd rather be called OCD. Anyway, when things get heated, an extra step of caution never hurts.