They're the recommended format to report a scam on this board, set in a way to help people understand what happens at a glance better as it highlights some key information.

You can simply fill the "field" next to each line with details as labelled. For example, scammer's profile link will be: https://bitcointalk.org/index.php?action=profile;u=1168226, reference link can be filled with their bounty ANN, and so on. Field that doesn't apply, like amount scammed or payment method can be left blank.