You do realize you can rename those waypoints, when they're created?
I've already said "When you are driving...". Maybe you don't mind fiddling with your gps while driving, I prefer not to do it -- you know the reason. The same reason for voice navigation -- I don't need to keep looking at my GPS screen to see which way and how far ahead I should turn.
If there is voice note (or voice tag, whatever you call it) function, I can mark a waypoint by one simple press and the device can be setup to pop up a voice question "Do you want a voice note for this waypoint?", You say "yes" and go ahead with "This farm building should be great for a sunset shot with fence as leading line" (I'm a photographer, so use this as example). Later when you back home you can check this voice note and know why you mark it. (Or maybe a double press to activate marking waypoint as well as voice tagging.)
Henry