Mark, the only ones that are misleading are the ones where you have to modify with a long press (detail for instance). So most of the ones you mentioned are fine as convenience labels. They just work. It also makes it more intuitive to read the translation section of a config file. The remote itself is inconsistent as to whether a subscripted label applies to a long press or not.
Hmmm... Didn't your IR translate page used to mention that PopUps didn't support the .L modifier? I'm next to positive I had read that. Seems to be working fine. So I figure it's either something you've changed or something that's worked forever.
Bruno