The issue, in this case, isn't opinions nor the other discourse in the thread. Rather, it is the account's comments over a long stretch of time.
The question "has an account been using HN primarily for political or ideological battle?" is one of the most important criteria we use in HN moderation. When it is the case, we ask an account to stop and/or end up banning it.
This rule has many advantages. One is that it's a reasonably objective call to make (and for readers to verify) regardless of the specific views a user is arguing for or against. Another is that it allows for a certain amount of political and ideological discussion (as long as it doesn't break the site guidelines in other ways, of course: https://news.ycombinator.com/newsguidelines.html).
The question "has an account been using HN primarily for political or ideological battle?" is one of the most important criteria we use in HN moderation. When it is the case, we ask an account to stop and/or end up banning it.
This rule has many advantages. One is that it's a reasonably objective call to make (and for readers to verify) regardless of the specific views a user is arguing for or against. Another is that it allows for a certain amount of political and ideological discussion (as long as it doesn't break the site guidelines in other ways, of course: https://news.ycombinator.com/newsguidelines.html).
More at https://news.ycombinator.com/item?id=40589862