The reason that people do enable forced rotation it's that it's an easy way to force all stock apps to work in portrait (most work pretty well). If there is a whitelist pre-loaded with cssu which has all stock apps which are reported to work glitch free included, (and maybe some unmaintained apps from extras) people will not need to go and enable forced rotation again.

That's why I proposed a pre-defined whitelist.

The solution to the names problem could be a shortcut that copies the name of the active application to clipboard (in some way what xkill does but instead of killing, just copy the name to clipboard)

I think I have seen another X tool that does something similar with the window id, and other application info.