While many of us conduct survey research that collects privileged information (i.e. marketing surveys, client satisfaction surveys, etc.), on occasions where we are conducting research on less sensitive topics it is always a good idea to make your questionnaire materials available to the public, along with your results. When publishing in peer-reviewed journals it is sometimes required by editors that authors include question wording and response options for all questions central to the analysis presented in the paper.
The advantages are that your readers, and users of your data, can see exactly how question items were asked, study the scales used in your survey and repeat the exact question wording in future studies that build on the same topic.
In a time when online storage is cheap, survey wording is important, and the goal of many organizational structures is "transparency," making your questionnaire available to interested parties is easier and faster than ever before.