A clinician is evaluating a 45-year-old individual who lives in a home filled with stacks of old newspapers, broken appliances, and empty food containers, to the point where several rooms are unusable. The individual becomes extremely distressed when asked to discard any items. During the interview, the individual explains that they must keep the newspapers because they contain coded messages from a secret society that are essential for their safety. Based on this information, is a primary diagnosis of hoarding disorder appropriate? Explain your reasoning.