Derek: I believe you already have this option of a sort with your Hub Hopper sliding scale, ex. Substance, Organization, Grammar and Mechanics. Obviously, for the Hub Hopper the "stops" define rubrics for a gradient markup/markdown for each. But, rather than doing a number of "stops," I like the idea of three: easy, medium or difficult. You could insert the criteria for each "stop" and then the Hub writer could just slide the toggle to the difficulty and once submitted toggle would "lock."
OR... Better Yet...
The other thought I had might work with the rating system of "stars." By using the definition of 1-star easy, three-stars medium difficulty, 5-stars difficult, you could define it that way--in addition, maybe Google might recognize the Rating option more than the slider.
OR...Better Still...
Create a "Rate Your Own System": where the Hub writer uses the star system but with the writer-created definitions that they could insert upon creation of this capsule: for example 1-3-5 could mean easy, medium, difficult for projects or recipes; short, medium, long time to prepare/create/write; dislike-somewhat like-really like; cold-medium-hot, G-PG-R (rating for movies), $, $$, $$$ (money cost for any product/service/restaurant/hotel/ etc.
I can see Google not having an issue with this, as it does recognize hotel $ $$ $$$ etc. Not sure programming-wise, but I do understand and can relate to using a graphic of slider. The only problem--and this may not even be an issue, is that the graphic will probably have to exist as a "photo?" Not sure how to include graphic unless one uses the HTML option, but not sure if many people are comfortable with doing this type of stuff. Just a thought--and thanks for responding!--Deb
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