Yes. Especially if the casino (or "prediction market") has access to the identities of players via id verification, fingerprinting, or other means.

You mean any non crypto payment system? :)

Going to guess that anyone in the U.S. military has their crypto wallet aggresively profiled by various spy agencies.

	▲	jcgrillo 30 minutes ago \| parent [-]
		And literally every other thing they do on the internet.. remember that Strava shit? You have relatively technically unsophisticated people with high level access and not a lot of adult supervision. That seems like a juicy target. I assume there are a lot of well funded and staffed outifts around the world who have noticed the same thing.