And from tests it turns out that my pages with WpDiscuz ratings are recognized as "Product". But I also read that it can be a problem if the category of the page does not reflect reality. That is, if after a manual check, google finds out that my pages do not show the ratings of a product, but more than various organizations, they can remove my rating forever. Do you know anything?
and in this case if I leave "Product" do I also have to fill in other fields such as: brand, decription, image etc? Because https://search.google.com/structured-data keeps saying that this data is missing.
currently, the "Product" is the most related type you can use for blog posts and articles. This is the most popular type. And, not, you don't need to fill brand, description, image etc, those are not required and not important for blog posts.