When using data annotations on models/viewmodels I am comfortable with using
the validation attributes, such as Required, Range etc, I am not so
comfortable with using display attributes, i.e.DisplayName, which can be
used to display a friendly name for the model property when using strongly
typed views and html helper methods, i.e. Html.EditorForModel. Is this
convenience method blurring the 'separation of concerns' paradigm? Maybe
they should be only used on ViewModels and not strictly Models. What are
other people's thoughts on using data annotations on models/viewmodels.
