The only reason I can think of for that post, is that you have no experience on the FR open threads.
I, as a Catholic, do get annoyed when I hear the same old calumnies, that we worship Mary, that we disobey Christ when we call our priests "Father" that the majority of priests are pedophiles and we protect them, that Catholics are liberals, etc. etc. etc.
Literally THOUSANDS of vicious anti-Catholic posts have been made on FR. Catholics are beginning to fight fire with fire, which is why some may be seeing a bit of the same coming back toward Protestants. Frankly, I don't care. Open threads are open threads. I've been here ten years, not as long as some, but long enough to see the treatment that some protestants, the Usual Suspects, deal out to ALL Mormons and Catholics on FR, and have for years.
Dead wrong.