Recently, I saw discussions in the group about "sandwich + arbitrage" and it was quite lively. Honestly, you think you're catching opportunities, but most of the time you're just paying fees to those who are better at calculations: routing around, slippage, MEV bots making a move, and your "spread" turns into someone else's profit.

Now I personally focus on transaction paths and pool depth for small experiments; I’d rather miss out than become fuel.

AI agents and automated trading are the same; the narrative is very hyped, but on-chain interactions are so complex that permissions, signatures, and contract risks are full of pitfalls... Anyway, I care more about who ultimately bears the costs.
The group chat atmosphere is pretty good, no one argues, but the more we talk, the more it feels like: earning is another story, first understand the fee structure clearly before taking action.