Yes, a text editor helps for some editing of an HTML file. Yet, for some work I need a WYSIWYG editor for the look and feel of the web document.
I use Kate [Ubuntu based Linux Mint] for the text editor. I use it for the Find/Replace option to change 91 links from [say] "4.3.3.2_" to "4.3.4.1_". That takes too much time in a WYSIWYG editor, or at least the ones I have used.
Currently I use Kompozer, but when I upgrade from Mint 16 to 17 [14.04 based] and beyond, the graphical display methods do not like the upgraded version that Ubuntu 14.04/14.10 now uses. So I will be looking for a different DEDICATED web page editor.
Yes, Writer can do the HTML editing, but I would prefer a WYSIWYG editor that was created specifically for web page editing and hopefully with error checking options.
I haven't followed the thread with great care so I may have overlooked a reference to 'bluefish'. <http://bluefish.openoffice.nl/features.html>
I haven't used it in quite a spell so this isn't a 'recommendation', just a reference to a tool which might be of use.
it is not, I think, wysiwyg as such but it will open your browser for inspection of results. (looking at the website it seems it may open your page within bluefish but I'm skimming too fast to be sure.)
see what you think.
(apologies if this has already been considered.)
F.