Mysterious new MetaCard file

[Richmond Mathewson]

I have just received a note that a new file has been uploaded to
the MetaCard Yahoo group:

https://groups.yahoo.com/neo/groups/MC_IDE/conversations/messages

from an email address rdbar814 at sbcglobal.net

This purports to be a new version of the mchome file . . .

However I feel uncomfortable about it for a number of reasons:

1. Who is "rdbar814" ?

2. Why is there no adequate explanation as to what it really does, 
because as far as I know
there is no way to get metaCard running with an LC 8 or 9 engine?

I have downloaded the ZIP file onto my Macintosh, but seriously wonder
about the wisdom of unzipping it.

Richmond.