People are likely downvoting you because allegations of astroturfing aren't allowed, you are supposed to just report what you suspect.
>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 hn@ycombinator.com and we'll look at the data.
That's a good point, although given I'd never seen this rule I question if it is commonly known enough that it is actually the reason I'm being downvoted.
Do you not think what has happened today is suspicious? The Gemini 3 posts are, to my eye, out of hand..