Just on the chain, I came across a transaction that looked like a "coincidence transfer": A sends to B, and a few minutes later B sends almost the same amount to C.

In the past, I might have imagined it as insider trading, but after breaking it down, it actually explains quite well—A is transferring tokens from an exchange to a new wallet, B is just a relay (possibly consolidating or changing addresses), and finally C is the actual intended address.
I also checked B's transaction history: the same "deposit, withdrawal" pattern repeated many times, which is basically not something a person is doing manually.
Recently, everyone has been anxious about staking unlocks and token unlock calendars, causing selling pressure.
Now I prefer to clarify the path first before drawing conclusions, otherwise it's easy to scare ourselves…
Anyway, I’d rather miss out than be led by "coincidences" to follow the rhythm.