Implausible. If they were that clued in to some impending, disastrous currency move, they’d have just parked the majority of their own liquid assets in a stable first-world currency other than the dollar rather than being difficult and getting themselves suicided.
I agree it’s implausible but something is going on here. I don’t buy that all these high-finance types have suddenly decided to off themselves. This isn’t a bunch of middle school girls in a copy-cat suicide ring.
My uneducated guess is that these deaths are serving as a warning to everyone else involved in the destruction of the US dollar. No one who values their life will feel motivated to reveal the details of any anomalies they might observe in the currency and commodity markets in the near future.