The problem with users doing this (at least currently ) means they have a lot of learning to do and must trust the app developers. As the space expands exponentially, this is going to cause many headaches with a few being very severe.

and having visible which authorites were used to sign the transaction would be very useful.

This should be a no-brainer and implemented as soon as possible I hope.

Thanks for explaining a bit more @pharesim, always appreciated mate.