Really? I used to think it’s against a sort of etiquette in Ccmixter.
Thank you!

Etiquette, schmetiquette

I’d settle for contributors providing a searchable tags noting the key.

Some of the contributors, especially Snowflake, often provide chord information.

For a musical ear challenged person like myself, it is good for skill development to know next to zero about an audio file and then successfully work with it. This approach may also results in a greater quantity of unique interpretations. However, if time is valuable and scarce resource, the more information about the subject matter from the author the better.