It could also be a sign that they just recently got out of the Navy.
My wife used to get soooo mad at me because I would automatically salt and pepper my food at home.
It was habit when I was in the Navy because the Navy cooks wouldn't spice the food at all due to possible allergenic reactions.
They could also be like my husband, who is a super nice guy, but really likes pepper. He unscrews the top of the pepper shaker and pours it on. No Kidding!
You know those plastic eggs you buy at Easter? I think I've eaten them.
Took me years to eat eggs again after the eggs they fed us on the training ship.
I worked as a restaurant cook and I know how they spice foods, most put none in and over the last 30 or so years salt has become a taboo. Besides, I am partial to certain salty foods including soup. Sometimes I taste first, sometimes not. I'm not jumping to a conclusion, just basing my salting on taste and what I know about restaurant food. If I happen to get a meal that is already salted (Haven't had it happen yet) and I add too much, too bad, my fault.