@mathowie It's a real problem. I run a non-profit which makes a few charitable donations per year in decent amounts and I always donate when someone has lost a loved one or is running a race. The amount of much-later emails and paper mail and occasional PHONE CALLS (what!) is astonishing.
Especially hard b/c these are all good causes and things I generally support but I have to say "Please take me off of your pet rescue/trans kids support/medical debt relief CRM list" more than I'd care to.