https://news.ycombinator.com/newsguidelines.html
A comment like that one encourages the worst in others, and we're trying to avoid sinking into a downward spiral here. Downward spirals are the default outcome on the internet, so avoiding them takes energy. We need everyone to contribute.
Here's another way to look at this. Name-calling adds noise to a comment (and encourages others to add still more noise), which lowers the signal/noise ratio. As the signal/noise ratio gets lower, a community like HN deteriorates. This process happens faster than linearly: thoughtful users leave because of the noise, causing the posts to get even worse, driving even more thoughtful users away. That would be a scorched-earth outcome, i.e. an extinction event for HN. Our job is to avoid that.
A much better way to post would be to raise the signal/noise ratio. "Signal" here means adding new information, information we can learn from. In the case of your comment, that would mean pointing out more clearly, in more detail and more neutrally, the flaws you see in the article. If you can't or don't want to do that, or you just think the article is so bad it doesn't deserve the effort, then please don't post to the thread at all—instead, flag the article as one that you think doesn't belong on HN, and move on. There's a karma threshold of 30 before you get to flag, but it should only take a few good submissions or comments to get there.