This handily ignores that doxxing is not some virtuous research and release of pure facts in the public interest. Its purpose is to turn lies about the victim into the publicly perceived truth (defamation) by mixing them with the weight of real facts.

That people who have some level of public exposure (as you and I do, posting on a public forum) will have some personal information out in the open is obvious. The thread-starter appears to be playing down the damage that doxxing can do "I do want to gently call into question the danger of the attack surfaces". To me, their admittedly unspoken, conclusion from point 1 is therefore "they had it coming".