-Can someone explain to me why in the name of all that is sacred and holy that when Thor buried that axe in Thanos, he didn't instead cut off his arm/hand with the stones on it??
Well in all fairness, he did throw the axe into Thanos' energy beam (? whatever you want to call that attack from the Gauntlet) both as a shield and to hit Thanos, aiming probably wasn't high on the list. There's also Thor's hot-headed nature. He's probably more focused on giving Thanos a slow death then anything else at that moment.