I think we passed the 2020s and in 2024, nobody asks "how will we sustain this" nd just hopes that a VC will give them x$ which ... will them just buy... time.
Yes, I have deep respect for the people building such a site for the better good, but asking the "how will we sustain this" from Day 1 is important (not even how to get rich, just how to get break-even).
Or maybe they have and therefore know you can’t sustain a “business” without collecting money to pay for your expenses?