Today I saw on the blockchain again those "coincidental transfers": A sends to B, then B sends to C a few minutes later, with the amounts looking like copy-paste.

I used to think maybe someone was doing covert trading, but after tracing the paths a few times, I realized most of it isn't that mysterious—some are router contract relays, some are the same person's wallet swapping gas, and there are those doing quick arbitrage across DEXs and then clearing out positions, leaving traces that look like relay chains, but it's actually just a pipeline.
The funny thing is, there's always someone in the comments shouting "inside info," and it’s frustrating how this kind of emotion immediately kicks in, with the social mining scheme of "attention is mining" ready to harvest another wave...
Anyway, I’ll first clarify the path before drawing conclusions, or I might really scare myself.