Which is just what I do. Disabling zoom is one of those nonsensical practices that spreads as web "developers" copy code from each other. I suppose there's a use case for it somewhere, but its main purpose is to remove choice and make sites harder to use.
EDIT: Actually I also include the initial-scale as in the comment below.
Huh. I only have the initial-scale entry, and I think that my sites always show up with page width matching device width as a result. Is there something important that the extra width specification does that I'm missing?
EDIT: Actually I also include the initial-scale as in the comment below.