On a related note, is cryptocurrency HFT a thing?

As much as I delight in seeing a traditional firms add legitimacy to cryptocurrency, I can't help but be slightly suspicious when a known HFT player buys an exchange in a market that's largely unregulated.

Granted, to the best of my knowledge true HFT isn't really possible in the FX market, and major players there still find a way to make everything a veritable cesspool.