Re: MIME (I guess)

I don't exactly understand waht you want.  If you want to read html
entity, C-c C-v C-c at the button of html entity.  The button looks
like as below.

> | [2  <text/html; ISO-8859-1 (quoted-printable)>]


> In my .wl I have
> 
> | (require 'mime-w3m)

Unneeded for recent SEMI-EPG.

> | (setq wl-summary-toggle-mime "mime")

Unneeded.  Wanderlust never define nor use such variable.

> | (setq mime-view-type-subtype-score-alist
> |   '(((text . plain) . 4)
> |     ((text . enriched) . 3)
> |     ((text . html) . 2)
> |     ((text . richtext) . 1)))

If you want to only lower score of html entity, change
mime-view-text/html-score's value as below on recent SEMI-EPG.

(setq mime-view-text/html-score 0)

-- 
Kazuhiro Ito