Last night before bed, I checked the on-chain graph, and I saw a string of swaps with two small transactions sandwiched in between, a classic sandwich pattern... Honestly, you think you've caught an "opportunity," but most of the time you're just paying others fees plus slippage taxes. Arbitrage itself isn't dirty, but if you place orders openly on the public chain, anyone can monitor your path, especially the fast movers. Recently, Layer 2s are arguing over TPS, fees, and subsidies; I'm actually more concerned about who gets to decide the matching rules and order priority, so that cheaper rates don't end up with more hidden costs. Anyway, I now split large orders, set limit prices, and try to use private routes when possible to avoid becoming a target.