There are two separate categories called Product Ideas that link to two separate collections of posts.
If one goes to the list of Categories at
https://community.quicken.com/categories
and clicks on the first item listed, Product Ideas, it takes you to
https://community.quicken.com/categories/product-ideas
and there are three sub-categories listed.
If you click on the 7th item in the overall list of Categories, it takes you to
https://community.quicken.com/categories/quicken-product-ideas
where there are six sub-categories listed, several of which then have sub-categories within each of those.
The same two separate instances can be seen in the list of Categories that appear in the panel on the right-hand side of the browser window when viewing discussions.
Seems like some discussion board organization/clean-up is needed.