It doesn't look like a "WYSIWYG": it presents the user with the edited source, but:
$ rpm -q bluefish -i
Name : bluefish Relocations: (not relocatable)
Version : 1.0.7 Vendor: ALT Linux Team
Release : alt1 Build Date: Сбт 12 Апр 2008 13:45:27
Install date: Срд 11 Ноя 2009 20:09:15 Build Host: bee2.hasher.altlinux.org
Group : Editors Source RPM: bluefish-1.0.7-alt1.src.rpm
Size : 6318273 License: GPL
Packager : Fr. Br. George <email@example.com>
URL : http://bluefish.openoffice.nl
Summary : A WYSIWYG GPLized HTML editor
Bluefish is a programmer's HTML editor, designed to save the experienced
webmaster some keystrokes.
It features a multiple file editor, multiple toolbars, custom menus, image
and thumbnail dialogs, open from the web, HTML validation and lots of wizards.
It is in continuous development, but it's already one of the best WYSIWYG HTML
http://bluefish.openoffice.nl/features.html says it rather has a "What You See Is What You Need" interface.
Cf. http://22.214.171.124/search?q=cache:0jBIjgx8SPEJ:en.opensuse.org/Bluefish+bluefish+wysiwyg&cd=10&hl=en&ct=clnk : "Most web editing software uses a WYSIWYG (What You See Is What You Get) interface style, whereas Bluefish uses what its developers call "What You See is What You Need" interface."
bluefish-1:1.0.7-alt2 -> sisyphus:
* Fri Dec 11 2009 Fr. Br. George <george@altlinux> 1:1.0.7-alt2
- Remove WYSIWYG from description (closes #22254)
- Manpage found