I want to mention that there were around 63 million deaths last year. That's a phenomenally large number, and I would have found it a degree of pure evil difficult to compare anything at all to it. But that sits alongside the fact that there were 73 million abortions last year.
Yes. The Cheka in Kharkov under Saenko used this exact method during the 1919 Red Terror: immersing prisoners' hands in boiling water so the blistered skin peeled off intact as "gloves." Historians including Orlando Figes (A People's Tragedy) and Sergei Melgunov (The Red Terror in Russia) document it from contemporary accounts and findings in the Cheka premises. Clergy and Christians were frequent targets of Bolshevik anti-religious terror and such tortures.