“Side note, I know of some people who will davka not give to a meshulach/fundraiser but will take note of the organization and give separately so as not to cost them the percentage that goes to the fundraiser.”
Isn’t there a story with the Netziv and a Gvir who gave a smaller donation once the Netziv started going around with a horse and carriage? The Gvirs reasoning was that he didnt want any part of his donation to the Yeshiva to be spent on horse feed. I dont remember what the Netziv answered him, anyone?