Currently you have to use Google search to find the donation page on Krita.org. Is this deliberate or an accident? I demand a big shiny donate button on the front page!

I too support this.
Why not take also donations in form of sub programs which can be modified and integrated in Krita's next Versions.
Even though you are not a Krita Developer,but good programmer who has some new ideas,you can donate your sub program ideas to Krita Development Team.Proffesional Programers with less time who cannot work continuously on Krita versions can contribute like this.