Over the yrs here on CAF, I’ve debated Catholics, Lutherans, Easter Orthodox, Evangelicals, atheists, and even some Catholic priests. I have befriended some of most of these groups. The ability to dialogue in a charitable manner, while presenting sound reasoning and references, is not only reserved to any of them in particular.
I do find CAF to be well mannered overall. I just don’t assume any particular poster is accurately portraying their own tradition. But I try to assume they are sincere.
In real life, I talk with many different Christians. I find the ones who are most able to interfaith fellowship the best, are those with family members in other denominations. They usually have come to terms with different traditions and have found common ground and understand more than their own perspective.
All that said, if I didn’t see a profound call to a Universal Communion in the Catholic faith, which has Scriptural, Traditional, and ECF’S support, I would not have converted from the denominations. It doesn’t have much to do with individual Catholic member’s behavior. It has to do with Scripture, Teaching, and the Holy Spirit giving me confirmation.