Wow, I learned about PostFinance charges from 1 January 2019 also by chance, in Revolut forum. No info sent to PostFinance customers so far (at least not to me).
I liked PostFinance, everything was simple and efficient.
Is it worth paying 5 CHF/month for this account though - I don’t know.
Revolut personal IBAN would solve the problem for some people
If it comes before end of the year.