Why CVSREAD?

[Richard Cobbe]

I recently did a presentation to several of my co-workers on effective CVS
use, and got an interesting question.

What's the CVSREAD variable for?

I know what it does, but I was (and remain) hard-pressed to come up with a
situation in which this behavior would be useful.  I'm assuming that such
situations exist; could someone provide an example?

Thanks,

Richard