I think the reason why it shouldn't be claimed as a moral good is pretty obvious - authors deserve to get paid for their work. I certainly can't claim I stand on a bedrock of morality as I've used it from time to time, but even though I don't have the money that a lot of HN commenters do I make sure to not use it for small-time authors. Even really successful authors I'll only use it about 50% of the time.
If you want information to be free? Great. But most of those authors wouldn't be putting the work in to making that information/literature in the first place if they know they aren't going to get paid.
I think the reason why it shouldn't be claimed as a moral good is pretty obvious - authors deserve to get paid for their work. I certainly can't claim I stand on a bedrock of morality as I've used it from time to time, but even though I don't have the money that a lot of HN commenters do I make sure to not use it for small-time authors. Even really successful authors I'll only use it about 50% of the time.
If you want information to be free? Great. But most of those authors wouldn't be putting the work in to making that information/literature in the first place if they know they aren't going to get paid.