Recently, I've seen people rushing to test the network and earn points, and everyone in the group is guessing whether the mainnet will issue tokens... I feel a bit guilty.

That AMM curve, to put it simply, is just you automatically swapping positions on both sides; when the price moves, it smoothly "sells you off / takes your buy-in," and impermanent loss isn't just a concept—it's a bill.
I didn't understand it before; I saw the pool's annualized yield was pretty high, so I threw my money in.
But when the token price surged, I ended up holding more of the "slower-growing" side.
Calculating exit, it was actually better to just hold steadily.
Later, I learned my lesson: market making should be like an octopus stretching out its tentacles—diversify, set stop-losses, hedge when possible;
If you don't understand something, don't move first—earn less but sleep soundly.