For my personal taste: the "I don't agree with this opinion so I will downvote this comment instead of replying with an argument" part that many users engage in. I see two explanations: infantile "NO NO NO" and malicious "if I downvote this, it will be buried and fewer others will see it". Given the design of the voting and flagging system and the fact that it's not discouraged, it appears that this is a desired behavior.
2 + 2 will never be 22, doesn't matter how you spin it. ( Edit, Ok may be in Javascript )
He made a statement, about not being able to put trial in the same country, I also made a statement about it is a future not a bug. And the reply I got was discussion were not mature.
Had the first sentence been a question as to why, you cant have the trial inside the own country, I would have replied about one country two system. But since he made a statement, I presume he does understand the topic on a certain level. May be that was my wrong assumption.
( Not to mention the article linked explains the fear of doing so )
I believe, and his further comments strengthen my belief, that this wasn't aimed at your comment, but at the fact that he got mass downvoted. That has since changed considerably, as it tends to do when it's highlighted. The counts are not public, but at the time I wrote my comment, his was practically background-colored.
If that bothers you, then HN is not the site for you. Downvotes for disagreeing has received the thumb of approval from PG[0]. Upvotes are for agree and downvotes are for disagree. On reddit people like to pretend otherwise (even though it's true in practice there as well), but here on HN there are no bones about it.
[0] one example: https://news.ycombinator.com/item?id=658683
I try not to let myself be bothered by hyper-tribalism too much, but it does put the good parts in perspective for me.
It's hypocrisy when mods say otherwise.