Emacs usability (was: Can anybody tell me how to send HTML-format mail in gnus)

[Ted Zlatanov]

The usability metrics (fairly standard in the industry) are listed in
http://www.catb.org/~esr/writings/taouu/taouu.html#id2998837 so please
see their definitions.  

- concise
- expressive
- easy (in the sense of "mnemonic load")
- transparent
- scriptable
- discoverable

Emacs is concise, expressive, transparent, and scriptable.  It's not
easy or discoverable without baseline knowledge, which is difficult to
acquire without reading the documentation (manuals, tutorials, or
books).  In effect, Emacs is more of a programming language than a
normal user application as far as usability goes.

Ted