Hosting and actual sysop expense is quite limited. I think 15ish years ago when Brion Vibber started to do it full time, he ran the whole Wikimedia operation pr

Hosting and actual sysop expense is quite limited. I think 15ish years ago when Brion Vibber started to do it full time, he ran the whole Wikimedia operation pretty much on his own, with an annual spend of low six digits (and that included his salary, hardware, hosting, the whole shebang). Spending $100m a year on dev work, conferences, grants, D&I staff etc is a luxury, the site could be kept running for less than 1% of the cost (and dozens of big companies would do it for free just for the PR benefits). Maybe the only other function apart from hosting/sysop that is essential to WMF's operation are the lawyers that prevent it from being shutdown in entire countries by lawsuit-happy individuals.