You have to remember who the relevant parties in the communication are.
If I'm reading my mail, and somebody says
"For more info about our product, finger info@widget.com"
and all I have is a WWW client, I can't exactly log in to widget.com,
start up an HTTP daemon, and install a CGI-bin script.
I can, however, do an "Open URL" or a goto, or whatever and say:
I think some folks might like to be able to use something a little more
straighforward, e.g.:
finger://widget.com/info
But it seems to me that if there were sufficient need for this, somebody
would have implemented it by now.
I believe in descriptive, not prescriptive specifications. Design by
committee is BAD.
Dan