Earlier quoted context omitted.
It's copying, not theft. The latter deprives someone of an item, the former increases its availability. An important distinction when considering the purpose and goals of Sci-Hub.
> It's copying, not theft. > The latter deprives someone of an item ... It's depriving people of money, which is not a trivial asset.
There is no moral dilemma here : accessing an article thru Sci-Hub deprives nobody from getting its due money. Scientists unfortunately continues not being paid for the paper, journals continues being paid by universities to review the paper, but nobody wants to pay just to read a paper from the journal when it already has been paid for.