The attraction for people to post on Hacker News is mainly to complain, and so in the first you get complaints the sentencing is too harsh, and in this one you get complaints that he shouldn't have been pardoned. Its not necessarily a cultural shift, just an artifact of the types of discussions people have online.
You can also hold both positions simultaneously without contradiction. That is to say that you can think that his sentence was too harsh while at the same time being of the opinion that what he did was a crime (and should be a crime) and that he should remain convicted and un-pardoned, just with a different sentence than the one he was given.
I mean, I won't admit it openly but something like that yeah. It doesn't help either that the way to show you disagree is by sharing what you disagree with (which is great) but the way you show you agree is by upvoting (which others don't see).
So one comment with three complaints in the replies but 100 upvotes might look like "people wholeheartedly disagree with this person" but in reality, most readers actually agreed. Comments that are just "I agree" are kind of pointless, so I prefer how things are, but useful to not read too much into "X people said Y" on HN.
at the time, the murder for hire accusations seemed legitimate and they still do today. hopefully they charge him with attempted murder if the statute of limitations isnt up.
This is the point. HN readership has changed dramatically in the intervening years. I don't buy at all that the difference is solely due to comments tending to contradict the article.