I would like to see an option to suppress hidden categories in the Tag Cloud output but didn't find a simple way so far. Adding the names of hidden categories to the '''exclude''' parameter explicitly seems to be a bad workaround. Do I miss something?
Topic on Extension talk:WikiCategoryTagCloud
I have a similar requirement, as other DPL3 is adding a category "Pages using DynamicPageList parser function" to every page, and tag cloud is not excluding it by name, perhaps it could do it by HIDDENCAT