Very striking to see how the sentiment has drastically shifted, while the facts of the case did not. There is a really cultural shift visible in how this issue is seen on here.
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.