I think it's a little offensive to the cook to smother something in condiments without even tasting it. That goes for anything. Salt, Pepper etc. I know a guy who covers everything he eats with pepper. Another who has 2 bottles of hot sauce on the table with his lunch every day at work... Now something like fries, that's different. You generally expect them to have salt on but nothing else. They are basically a 'plain' taste that we add flavors to after they are served. So go ahead and use ketchup, mayo, vinegar, cheese. But a 'prepared' item like a steak, I would hope that you try it the way I cooked/seasoned it first. If you still want to ruin it with ketchup that's up to you.