Calling a distinguished engineer a "marketer" like this is demeaning, disrespectful and shitty, please don't do it. If you want to point out potential bias, there are more civil ways to state that.

Engineers can nevertheless also be marketers for their employer's products.

"Marketing hat" is extremely civil. Back off.

I see you didn't disagree with the main thrust of my post.

You'll also note their 'About' is empty. Regardless, engaging with HN in this manner is de facto marketing/PR. Trillion dollar companies don't just let anyone post on high-profile social media websites for any length of time without permission from marketing/legal/PR.