[gryn]

you can parse it as 'I have been to Russia' => integer representing the number of times you've been to Russia.

with the original boolean meaning being a special case, and this being a context-dependent generalization to be inferred by the listener.

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this kind of sentence would kinda make sense (in the sense of being informative to the reader and not just a tautological statement) if you, for example are a researcher who have access to a native island where most people are forbidden from entering and have been there multiple times since you were given an exemption from the rule.

here is a list of islands you probably wont have access to: https://en.wikipedia.org/wiki/Uncontacted_peoples