This would have been very useful at several companies I worked at as a product manager for release blogs. I always start editing in gdocs because it's so much easier to collaborate on than any blog platform, but then you always need to copy/paste the content once final into the blog and nearly every time, it copies some elements of formatting into the rich HTML editor I don't want (fonts, font sizes, etc) while I do…
One tip for pasting without formating, at least in Windows, is CTRL+SHIFT+V.