I don't mind chefs doing it, presumably they to know how to not cross contaminate in a kitchen since they have food and beverage certification.
But I cannot tolerate it from home cooks. If I see someone poking the food on my plate before it gets to me I probably won't eat it. I'm really weird about potato salads and cold appetizers, they've been handled lol.
I know how to avoid cross contamination and am pretty obsessive about it. I made this potato salad last Sunday... you wouldn't eat it? .. I used a spatula for mixing everything but I had to touch the green onion with clean hands (soap and water)
Someone can wallpaper their kitchen with http://www.servsafe.com/home certificates but it doesn't mean crap.
Unless those gloves are changed everytime something is touched cross contamination is a given.
I would rather have a cook wash hands frequently than mindlessly cook with the same pair of gloves for hours,.thinking the gloves are keeping the food clean.
OBTW.... eastshores potato salad is right at the top of my favorite food list and yours is the one I would load up on at a family reunion.