I underline unlinked text to draw a surfer's attention to certain words within a larger block of text which I KNOW most surfers wouldn't bother reading. Underlining wasn't invented by internet marketers and not all links are underlined - so there!
Reviewers bitch about banners and they bitch about text. Soon, a free site will be 75 high resolution pics (or 10 minutes of video) and you'll be allowed a single ad spot only on the bottom each gallery page (certainly not BEFORE the content) - and the only permissable text will be
THIS IS AN ADVERSTISEMENT.
To think that someone would underline text just to piss off the surfer is just plain idiotic. Underlining, bolding, italicizing, or using text of another color are all means of gaining the surfers attention. No wonder you all live in mobile homes and I live in a mansion.