That's long been my assumption.
What I haven't known was whether this was good Russian people (culturally valuing literature and intellect) wanting to be able to access articles that they can't afford.
Nor whether it was or could become something sketchier (e.g., feeding spy databases, or one nice Chrome zero-day and strategic timing away from compromising engineering workstations at most US tech companies where an employee reads HN).
But what actually bothers me about the misc `archive.*` sites is how HN routinely uses them, for US tech company workers to circumvent paywalls for struggling journalism organizations. This piracy practice seems to have the unofficial blessing of the US tech investor firm that runs and moderates HN. Besides whatever laws this is breaking, subjectively, it feels to me like crossing an ethical line, and also (economically) like punching down.