There is a difference between doxxing and investigative journalism. While the line can be fuzzy, I generally associate doxxing with an attempt to harass or intimidate, and investigative journalism with unveiling hidden information in a matter relevant to the public interest - and that information often includes concealed identities of suspected perpetrators.

Krebs doing his homework to reveal ringleaders of a criminal enterprise and showing how he got there is firmly in the "investigative journalism" category.

Obviously, there are unfortunate cases where some (often young and inexperienced) journalists shoot first and ask questions later, which can lead to harm, but Krebs has clearly kept the receipts here.