I wouldn't either but many people run them at 1.4v-1.45v as long as they have the cooling for it.
And Intel also says max voltage for Skylake is 1.52v, I don't think they would say that if the chip couldn't handle it for at least 3 years( warranty is 3 years).
But again I agree I wouldn't try running it at 1.5v , but all these ppl saying 1.3v-135v max is nonsense IMO