I can understand people deciding to go veggie or vegan, but not then trying to make their substitute food look like or taste like meat, or fish or whatever.
Surely it would make sense just to eat the tofu as it comes without adding artificial ingredients in an effort to make it like the food that you won't eat.
Or maybe it's because tofu 'as it comes' tastes terrible, that it doesn't taste like the food you really want to savour