It is a little crazy to accuse people not using the dev tools you like of malpractice.
I understand there are people who haven't used debuggers before and don't know what they're missing out on, but there's no excuse for that anymore because it's become much easier to set them up and use them.
To be totally honest, having such an absolutist view makes you look inexperienced -- and accusing people who disagree of "malpractice" is absurd.