I think the hostility comes from Wikipedia constantly asking for money when most of the money goes to things that aren't Wikipedia.
https://wikimediafoundation.org/support/where-your-money-goe...
I'm sure what poster is referring to was "discussed" previously in the link below. I use parentheses because it descended into flames pretty quickly:
That aside, the first heading in your link is "43% Direct support to websites" so yes, most of the money does not go to Wikipedia.