I'm not sure if you're intentionally trying to miss the point - the scam is that people who knew that demand for the asset was about to crater - because they were about to crater it, by shutting it down, extracted their investment knowing that others would not be able to.

The reddit moderators who cashed out were not the ones who were shutting down the service. They simply had insider information that allowed them to move first with this information. This was not a rugpull scenario.