What are ‘prots’?
“prots” is short for “protties” which is like rotties, which is short for rottweilers...
in other words they think non-Catholic Christians are like snarling dogs
They also tend to be the ones that rarely if ever add to a discussion. Instead they will post endless lists or just make smart comments that have no bearing on the topic.
They demonstrate an inability to think beyond the lies that hey have been told and absolutely refuse to use legitimate sources for research. The absolute surefire way to recognize them is that when they just continue to blather nonsense I will sign off to them with: "Feel free to have the last word."
I hope this fully answers your question, let me know if any part of it needs clarification.