To be more specific: They did not speak out about blocking "the country" but about closing accounts and restricting access for all Russian citizens/residents. They are, however, complying with targeted sanctions of the individuals on the sanction list.

If the scope of the OFAC sanctions forces the exchanges to start blocking Russian passport holders and/or residents, that will change, of course.

Kraken CEO tweet thread: http://nitter7bryz3jv7e3uekphigvmoyoem4al3fynerxkj22dmoxoq55...

Great, they can ban Russians when forced to anyway? So much for no censorship on crypto tokens even a South Korean crypto exchange has done it. [0]

We both know the writing is on the wall and crypto will end up being useless for Russian users.

[0] https://cryptopotato.com/south-korean-crypto-exchanges-block...

While you may know this, I know otherwise. Time will tell which of us has the more predictive knowledge.