New Tag in script section

What is “Script Frame By Frame” and why do you think it should be tagged?
How does that differ from “script by motion tracking” that half of scripters use? Scripting Timelapse - Me Speedrunning A RIM Animation
What On Script Interpolation / Curved Strokes does it have?
I’m not a scriptman, so please elaborate
(well, I’m a scriptman, I’m just a game scriptman, not a video scriptman)