I have respect for their causes, and they do a great service, but I won’t be sending them any charitable contributions ever again.
Because after sponsoring a friend’s charity cause, they have inundated me with emails for various campaigns, and their unsubscribe option conveniently “doesn’t work”. So all the goodwill my friend brought to one of their charities, causing me to donate, they burnt immediately (and continue to beat a dead horse). I’m happy to support whatever campaigns my friends bring to my attention, I think that kind of social advertising is the ‘ultimate’. So why follow up success with 1999 style email marketing failure?
Let Google index this page, and let it rise to their ears. There are many other great charities out there that would do great things with my money, and respect me in the process.