I get a fundraising email stating "We have only 3 days to raise $24,456 so we can have the funds to launch our campaign properly [...]"

Where do they get this oddly specific number? What are the odds of winning if you don't get it vs the odds if you do? Is there an inflection point?

If you go to donate: "Make it monthly?" (they ask this TWICE) "Leave a tip?" You're asking for money to cover processing, that is not a "tip". They "suggest" 16%: that's a big processing fee.