Regardless of how widely disclosed information might be or what its owner has done with it in the past, sharing PII that doesn’t belong to you on a public forum

Regardless of how widely disclosed information might be or what its owner has done with it in the past, sharing PII that doesn’t belong to you on a public forum is still doxing. Particularly when you hold it out to be your own among people who might not have that context, given the question you’re “answering”. He also learned his lesson over a decade ago, and furthering that lesson unnecessarily as you have here borders on harassment.