Rental pricing vs owning — this week's maths

Strong disagree with the last reply — undervolting bought me 13% efficiency for a small hashrate haircut, and I'd do it again. Anyone tried the opposite?

Reading this from {place}, running a node changed how I think about the whole stack, mining included. Am I missing something obvious?

Genuine question first: firmware updates over USB first, OTA only after you trust the supply. Learned the hard way. Would you do it differently?

I killed a hashboard learning hotair rework and consider it tuition. What's everyone else seeing?