I have read much here, and heard on the air the observations of foul odors being emitted by some hams at local ham fests, as well as Hamvention. Most hams I know are very tight with the coinage. Copper wire was invented by two hams when they both spotted a penny on the ground. These hams seem to be offensive to the olfactory glands as well. I think I know the reason.
Most hams I know, that DON'T stink, sleep in a hotel, or motel, or BB. They get to take a shower before heading to the event. The tight fisted, stinky ones sleep in their cars, or trucks. They don't even take a 'whore bath'. It is like what I experienced last weekend. I took my granddaughter, and daughter primitive camping.
I was able to walk a few 1000 ft. to the ranger's station and get in a 'whore bath'. You know face, butt, and pits, lather up well. Change of undies, and I was good to go.
Maybe these hams that won't spring for a hotel room are at fault here. One year I was offended. It was back in the day that Hamvention was held in April. These Hamventions were known for the RAIN! It started to pour the rain. Most people headed for the hockey arena for shelter. The smell of wet B.O almost made me puke. So the complaints I read here, and other places are valid. Maybe I noted the probable cause.