Word of warning re AirBnB exchange rates

AirBnB are doing the Ryanair trick – silently ripping people off on exchange rates.

On 1154 euro, my bank charges about 10 USD to convert to USD.

AirBnB are charging about 50 USD.

AFAICT it’s not optional (it is on Ryanair, so AirBnB are actually *worse*).