When I do, I ALWAYS put them in quotes or italics, and either link to, or name the source.
IF I don't, then the reply is based on my research. FYI, I'm a seasoned writer, essayist ( and I must remain anonymous) and my writing tends to look like copy and pasted text.
I also use AI as a research tool, but it's output is public domain and not quotable. If I copy and paste any AI text, more often than not, I rewrite it to my own words. If the data is wrong, prove me wrong, that's the point of debate. My whole point of being on this forum is to research the efficacy of AI in a debate forum setting. Is that acceptable to the rules? If not. I will leave this forum.