comment and version fields.

[Robert J. Hansen]

> No, you're misunderstanding me. I'm not concerned with the  
> technical user who posts a question to a news list and understands  
> the issue. I'm wondering about the non-technical (business) user  
> who gets a plug-in for his email client and then misinterprets a  
> modified signature block that someone tampered with.

Then this isn't even a GnuPG problem, is it?

Find an email client and plugin which makes this sort of thing  
possible, and then go complain to them.