In the OP, many of the links (e.g., "first, innocuous patch") lead to mail-archive.com. From there, click the button with the name that appears after "Reply via

In the OP, many of the links (e.g., "first, innocuous patch") lead to mail-archive.com. From there, click the button with the name that appears after "Reply via email to", and it will open your email client, with the To: filled in with the email of the person.