Even more true that it is stupid, stupid, stupid to enter into any substantial debt that must be paid in a currency you don't have, earn, or can afford whatever happens.
It was irresponsible at best. Regardless how many people took CHF mortgages from 2006 - 2009 in Poland? i can tell you from the horses mouth that about 90% of mortgages awarded during that time were CHF (Swiss franc). Stupid or not the scam worked very well indeed, people were blinded by the cheap interest rate offered in CHF and they were taking them 9/10 times. Its especially crooked when you consider the majority of Poles were not aware of such banking tricks.
I remember saying at the time (in real life, not here) that it was a crazy thing to do and several people being outraged.
Its merely the capitalist profit machine doing what it does best.....exploiting the people. I'm surprised the UK has allowed payday loan companies to flourish in the way that they have. Its practically the loan shark era all over again, when ohh when will we wake up and stop this complete impractical nonsense.