They wouldn't be quieter after you step on a rock and yelp out in pain...
If you're just wearing them around camp, use whatever is comfortable.
As far as running goes, no way, wouldn't touch them. I know plenty of folks who have- if you take the necessary time to slowly work your muscles into them and don't overdo it, they're fine for short distances. If you don't take the time, you will most likely get injured in no time flat. There truly is not enough benefit to even try. There are plenty of minimalist running shoes that do just as good of a job or better that are the same or only very slightly more weight.