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Yated Shidduch Forum 8/12/22: How to Handle Shidduch Research Calls from Anonymous Calls?

Question:
 
I have a follow-up to the question from a few weeks ago about serving as a shidduch reference.
 
Recently, quite a few times, I got calls about singles from people, but they refused to provide their name or their relationship to the shidduch (meaning if it’s for their son, daughter, or some other relative).
 
Am I obligated or expected to provide shidduch information to people who don’t want to identify themselves? Am I doing a disservice to the singles in question if I insist on the people revealing their identities (in which case I really don’t know if the names and info they give me are genuine anyway)? Or am I just being too paranoid?