Using the same timescale, Wikipedia itself (the Wikimedia Foundation) went from $5M revenue to $120M, 24x. [1],[2]. During that time the Executive Director's salary went from $168k to $387k[3]. At the end of Sue Gardner's leadership in 2014 there was a question about her $300k salary[4] which included the response:
"(2) Retention bonus to compensate Sue for lost opportunities during the
transition period: $165,000."
This seems to undermine Mitchell Baker's reasons for her salary increase, doesn't it?
Wikipedia also gets a slightly higher score from CharityNavigator than Mozilla, edging them out on more efficient earnings, lower admin overhead, but far ahead on "growth of expenses": https://www.charitynavigator.org/ein/200049703 vs https://www.charitynavigator.org/ein/200097189
[1] https://en.wikipedia.org/wiki/Wikipedia:Fundraising_statisti...
[2] https://wikimediafoundation.org/about/financial-reports/#sec...
[3] https://meta.wikimedia.org/wiki/Wikimedia_Foundation_salarie...
[4] https://lists.wikimedia.org/hyperkitty/list/wikimedia-l@list...