I think the deal is, Catholic (or Mormon, or etc.) posts go into the Religion forum. You can click or not if it interests you.
I am an evangelical Protestant, but, I do click on Catholic stuff time and again because I like to know what’s going on with them. They are a great big organization, and I do share similar values with them on many issues - pro life, etc.
Probably the most important one is we all believe that Jesus Christ is the Risen Lord and our Savior!!!