The medium in which it would be the MOST difficult to determine the tone a person is trying to convey is in an article.
In articles, tone relies heavily on word choice and writing style, which can sometimes be subjective and open to interpretation. Unlike video interviews or vlogs, where body language and vocal inflections can provide additional context, written text lacks these visual and auditory cues, making tone more ambiguous. Podcasts do have vocal tone but lack visual context, yet they still convey more than a written article.