They are paying people to write and release quarterly updates. Without any inside info, I can tell you that that costs money. Maybe they setup trust funds to issue such updates well into year 2087. What more do you want???
A traditional funding raise would be in USD and the startup may receive in a number of tranches tied to milestones. In the case of Filecoin I think they received a large chunk of it in crypto, specifically Ether, which has grown significantly since then. If they didn't convert it to fiat shortly after the funding round they could be sitting on a (paper) value of over $1 billion.
What they could get away with is spend 20-50% of the funds on hiring a large well-looking diverse team, spend the rest on consultancy fees from world-class experts in XXX and YYY and eventually quietly shut down. In the current investment climate this won't be taken as a questionable spending, at least not enough to bother investigating possible affiliation between you and the experts (e.g. Juicero and Ottolock).