Works for most people, you can report the bug at github. Bugs reported properly get fixed.

Do you see a huge link in the center of the website "Support Ukraine" which leads to the site which accepts donations for Ukrainian army? YooMoney is just a convenient payment system for non-EU people, including russian citizens who might want to donate and support the project.

update: I still don't see your point. You think that 200$ that passed though YouMoney over period of a year will affect the war with whopping 50cents of income it generated for YooMoney? The service was set up before the war even started, and at the time was the only option that worked for me.

So, quite hypercritical coming from a person whose country pays billions to russia every day.