I know that guy! He was sitting at the table next to us in O'Cebreiro last year when we were having breakfast.
Seriously though, I believe people, over time, become immune to the smell of their own clothes. Some people, poor souls, through no fault of their own, lack the resources to wash their clothes, and their bodies. Others think that as long as they wash their bodies regularly, all will be well; they are unaware that unless the clothes they wear are also washed regularly, their clothes
will smell. Perhaps these people left home before their mothers had a chance to impart on them this bit of wisdom - hey, it can happen. Maybe some Forum members can suggest some tactful way to get this message across to the transgressors.
If the transgressors don't appreciate our efforts, their mothers will.