Put glitchless and glitchless HC in one category. I dont see reason to diff category, when HC is hours ahead.

probably for the same reasons Diablo 2 has separate categories for sc and hc, even though fundamentally there is no difference. Was a community decided thing More people run HC because it's generally better content/suspense to stream to an audience, and thus there are more runs and therefor there are better times

To not make new thread I ask it here, as it is related - is low health+mana shield considered glitch or a feature?

It's considered a feature.

We don't allow duping.

We don't allow putting spell buffered from previous game.