Just upgraded from RH11 to RH2019 Classic, and my brain insists on seeing the "new" conditional tag highlighting as underlines, not overlines, so I keep panicking that random bits of text have somehow been conditioned...
Exactly the point I made! Fortunately it has not been carried through to 2019 New UI where shading is used, which is what should have been done rather than the overlining that came in with RoboHelp 2015.
Oh good. It's not just me. 🙂