thanks for this constructive suggestion!
whatever solicits the best and quickest response is smart.
7 months ago, I was kind-of against this mindset. However, after several months of trying to solve forum problems, there are far too many cases where a sample workbook could easily be created using the Superstore sample data provided with Tableau. However, I think the main problem is new users are not sure how to do this, and it can take them a very long time to replicate something using sample data--and there is no documentation/guidance available to them--so, they only learn by practice and experience.
But I digress, and whole-heartedly agree now, that we need packaged workbooks (as well as mockups, clear descriptions of the problem, and a note about which version you're using) to help you in most cases!