since 25k doge are roughly $12,- you shouldn't say $100, that's true.
my point is that at the time of my donation, the FIAT value was close to 100$ i didnt do the math, the numbers are only to prove a point. The value of the currency at the time of donation can fluctuate, so a dip or a rise could throw off all the math if he'scashing out daily. And there is no transparency to someone cashing it all out. Every single legit BTC and Doge charity will leave the wallet alone so people can verify exactly where their donations are and when they are being spent. For all we know he's paying his bills with it.
that's one of the beauties of crypto: you can track all transactions (I doubt that IE sent all of them through a mixer...)
People know exactly what their BC/BTC/whatever are in FIAT when they donate, so exchanging them at the current rate should not be a problem at all. Or do you donate tiny amounts in the hope they will be worth anything once the donations are actually needed?