Scraps tab

Ive been told you don't see whats put into the scraps folder unless you click on it. So my question is this:
What does one put in the scraps folder ?

My girlfriend says WIPs go in there , I was thinking Its just a place to stash things im not interested in anymore or not up to snuff.

Another question I wonder is If you turn something into a scrap that wasn't before and someone had had a favorite on it, Do they loose their favorite with it not being in the same place anymore?

I don't want to break peoples favorites @__@; that's a crappy thing to do.

What are your thoughts?

from the 3rd through the 5th I will be at Anime Boston 2015 walking around. I will still try to get in my daily drawings done through my nintendo 3ds notepad/colors 3d and uploaded to FA

>w< hopefully everything works out ok ,come this far