-o It should be trivial to type.
Yes, but the intention should be to use a good composing agent.
People won't be able to type it exactly right.
I'm afraid I disagree. I think requiring a composing agent is one of
the two reasons richtext has not seen widespread use (the other being
it's not quite readable enough without), and I think enhanced/simple
text should address both failings, not just the readability one.
I know for my part, if I can't remember it and type it, I won't use
it; my composing agent is my editor, and I don't intend learn a new
tool just for sending pretty email. I'd much rather trade formatting
capabilities for ease of use. For instance, I have never used what I
would consider a footnote in email (parenthetical remarks, yes, but
not footnotes) so I would gladly leave them out.
(For those wondering why I have a richtext alternative, it's only
because I have an awk script that turns cheesytext
(not to be
confused with enhanced or simple text) like that in the plain
alternative into richtext, not because I compose it in richtext, and
then produce a plain version.)