Especially if the exchanges get hacked and lost 70.000 BTC overnight ,which the thief will turn back to fiat.
That hurts the price, but not just that.
Many people give donations to charities which also turn back the money into fiat, instead of that, if you want to pay for charity pay with fiat, but not with bitcoin
charities converting everything to fiat aren't any different than merchants doing the the same. beside that, the impact of charities converting everything into fiat is barely worth mentioning. charities have absolutely no impact on the price. merchants do.
If someone is doing charity with bitcoins, then at this present time, that charity will have to be converted to fiat to make use of that charity. So I suppose in a way it is the part of the economy.
i didn't say it isn't part of the economy. i only stated that charities don't have an impact on the price. unless people donate hundreds/thousands of bitcoins per month. which isn't the case obviously.