I do not like the official language used in examples. "Do you have sources we can use?" can be replaced with "Do you have sources than can be used?". "We respect copyright laws, so we can't accept every image on Wikipedia." can be replaced with "Wikipedia respects copyright laws, so it can't accept every image on Wikipedia.". "Hello and sorry for the bad experience you had."; it sounds like an employee replying to an dissatisfied customer.
Topic on Talk:Growth/Communities/How to interact with newcomers/2023
Thank you for the suggestions. I changes the two first sentences.
Concerning "Hello and sorry for the bad experience you had.": it is a way to deescalate a potential clash with the user. It is a way to acknowledge that there is an issue. Then it is easier to explain why things went wrong.