No comment yet, I haven't dropped mine yet.  However, if it IS possible to scratch an anodized part, trust me, I am your gal to find out.  Just give me a minute, LOL.
Last nigh I accidentally turned it up to 100 watts.  I decided not to 
vape.   I don't know how/why maybe my battery was not sufficient, or perhaps it was reading my coil, and thought, "Crazy lady why you wanna do that?"
I so don't mind I'm sick of 100 watt hits.  My Geekvape legend is particularly bad in that respect (both while driving) and they SUCK and destroy 
coils instantly.  I don't even drive with it anymore and well, that seems to be working out.
Anna