There's some bots on HN who write much more coherently and get a decent # of upvotes. I was only able to catch one because the comment started with something along the lines of "Here's a smart response for a technical audience about _____"

lmao, got a link?

Sadly it was edited, but this comment used to be clearly responding to a prompt: https://news.ycombinator.com/item?id=46805888

@dang what was the original comment?

I've lost the plot - what comment are you asking about?

(Btw, @dang usually doesn't work - it's better to email hn@ycombinator.com.)