That is the light reflecting off of my septum, I picked my nose right beforehand. The stain you're referring to is the Orange light from the Titan on my Titanfall shirt.
It gets annoying, i have to comb every morning after gym, protip, get some beard oil, or burts bees hand salve, put it in after a shower, and keeps knots to a min.
But yeah, like 13" now.
Impressive. I shave mine late spring every year and start it back up early fall. I'll have to look into the beard oil, mine is a tangled mess in the morning...