In late answers Review I found a helping notice as

This is a new user's answer to an old question. Watch for hidden gems, non-answers, and spam

I understand what non-answers and spam refers to, but what is meant by hidden gems? I don't want the meaning; I want to know how can we find the Hidden Objects in the answer.

Thank you.

In late answers review I found a helping notice as:

This is a new user's answer to an old question. Watch for hidden gems, non-answers, and spam

I understand what non-answers and spam refers to, but what is meant by hidden gems? I don't want the meaning; I want to know how can we find the hidden objects in the answer.

In late answers Review I found a helping notice as

This is a new user's answer to an old question. Watch for hidden gems, non-answers, and spam

I have understand what comes for Non-answers and spam but what comes under Hidden-gems. I mean I dont want the meaning , I want that how can we find the Hidden Objects in the answer.

Thank you.

In late answers Review I found a helping notice as

This is a new user's answer to an old question. Watch for hidden gems, non-answers, and spam

I understand what non-answers and spam refers to, but what is meant by hidden gems? I don't want the meaning; I want to know how can we find the Hidden Objects in the answer.

Thank you.