I think people who are taking out milk as a part of their diet are extremists, altering your diet to this extent is not sustainable, at least for the vast majority of the population. I happily drink my coffee/tea with some milk, additionally if I am really craving something sweet, I might have a teaspoon of sugar in my drink.
The same (again in my opinion) goes for ULC and ANYTHING else that alters the way you eat WAY out of the norm
The problem with this mind set is that you WILL bounce back at some point in which case you will yo-yo and fail, this failure will be associated with your diet and you will be less likely to try again
I don't see the sense of restricting yourself into misery