I don't have the same degree of accountability with people about their finances in the same way as I do about their church attendance or sleeping with their boyfriend or girlfriend. This is because of the many warnings in the Bible about money - don't let your left hand know what your right hand was doing.
We only get pledges as a piece of information, not as a way to hold people accountability spiritually.
We still can talk much more about money than we normally do in the Australian church, I think. There are times where you can talk publically and in general terms, about how much you are going to give to a particular project.