The discussion centers around the requirement for submitting reference letters for a doctorate application at ETH Zurich, specifically the meaning of "reference data" related to the recommenders. It is clarified that "reference data" refers to the complete contact information of the authors of the recommendation letters, including postal address, email, and telephone number. The original German text emphasizes the need for letters that evaluate the applicant's scientific qualifications and should be signed with the authors' full contact details. There is some confusion regarding the translation of terms, but it is ultimately agreed that "reference data" pertains to contact information rather than a list of publications or a CV. The conversation also touches on the dynamics of providing help and the reception of feedback within the forum.