The author of the article is leaving Gmail after 16 years due to the increasing presence of AI-generated features, such as automatic message summaries and suggested replies, which they find intrusive and disrespectful. The author feels that these features imply they are not capable of writing their own emails. They are switching to a new email provider, Fastmail, and are considering importing their contacts but starting fresh with their email history. The author is frustrated with the lack of control over these AI features and the inability to turn them off without also disabling other useful features.