[Geimfari]

The foundation has so much money that they could fully sustain themselves just from their endowment if they wanted to. They really do not need donations from the public and their petitions for money are misleading for the majority of people, who think they are helping to pay for editors (free) and server costs (minor costs).

[adventured]

They have enough cash to safely operate for one year roughly with current expenses, without new contributions. I'm not sure where you're getting that they can free-stand just on their foundation's financial position.

Expenses were $81.4 million in 2018 (up from $69m in 2017). Cash is $73.9m (up from $49.5m). Wages were $38.5m.

Here is their audited 2017-2018 financial report [PDF]:

https://upload.wikimedia.org/wikipedia/foundation/6/60/FY17-...