AirBnb is not at all transparent as regards currencies.
When I book an apartement in Thailand, I first check the price in thai bahts then switch to euro, which is the currency of my bank account and credit card, when I book.
Does AirBnb charge conversion fees when I pay in euros ? No mention of it when I book with a price in euros.
I recently booked in Thailand and forgot to switch to euros, I will therefore be charged by my bank with 2,90 % conversion fees.
If AirBnb already includes conversion fees when I book in euros, may be it doesn't make much difference, but AirBnb is terrible as regards transparency.
I think they should ask for a confirmation when the booking currency is different from the default currency in my AirBnb account.