If all parties are agreeable I say live and let live. Spent way to many years judging others only to find out I was completely wrong.
That doesn't mean that certain things wouldn't make me uncomforable if I had to watch.
One thing that I might judge someone for is being a capable adult while gaming the system. People who collect welfare or workmans comp when they are able to work come to mind. Even there it isn't a black and white issue, the goverment takes our money in taxes, why not get some back if you can.