Is this scale rot?? My humidity isn't high.

[MD_Pythons]

I keep her on peatmoss which holds humidity really good but my area is really really dry so I guess thats a problem. I don't have one. I used to but she started climbing it and then I started seeing the glue sticking out and I got nervous but it usually was at 40%

Yeah, you're going to need one. I'd get a digital one over those crummy stick on analogue ones.