You can't attack another user like this, regardless of whom they work for. I've banned this account. It's important to quality of discussion here that people be free to post about things they know about, and people tend to know a lot about what they're working on or what other people at their employer are working on. Allowing full-out attacks like this would disincentivize them to post, which would be strictly bad for HN: more aggression, less information. We want exactly the opposite of that.
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Separately, would you please stop creating accounts for every few comments you post? We ban accounts that do that. This is in the site guidelines: https://news.ycombinator.com/newsguidelines.html.
You needn't use your real name, of course, but for HN to be a community, users need some identity for other users to relate to. Otherwise we may as well have no usernames and no community, and that would be a different kind of forum. https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...