Spiting The Hand That Feeds You.
Yesterday, I was astonished to answer the door to a chugger. It's annoying enough when such "charity fundraisers" accost you in the street under the delusion that you might choose to give your banking details to a complete stranger, but to have them at your door is even more intrusive.
It can't only be me who refuses to have anything to do with them out of principle. Why would you want to annoy potential supporters with aggressive begging when your goal should be to develop a personal interaction with people that makes them feel good about your efforts?
I'm sure it's justified as a cost-effective method of fundraising but marketing ROI is about much more than short-term financial costs.