We've banned that account but please don't break the site guidelines yourself, especially not with personal attacks. Note this guideline in particular:

"Please don't post insinuations about astroturfing, shilling, brigading, foreign agents and the like. It degrades discussion and is usually mistaken. If you're worried about abuse, email [email protected] and we'll look at the data."

https://news.ycombinator.com/newsguidelines.html

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