I know it's cliche to say, but my god, where did the $141 million go?
I'd just estimate 250k/person/year loaded cost for their expenses, and it would probably be accurate -- they're not making big media buys or other non-personnel expenses. 125k salary ends up being about 250k once all other direct and indirect costs are factored in.
I find an additional $125k to be a stretch, but I also have no data to back this up. I'd be curious to see the breakdown for this: $125k + some share of insurances, office spare per square meter, equipment, training, social events, etc - what else?
Overhead rate goes down if you hire more peeps.
but their team page does lists 77 people https://www.quora.com/about/team