I have some free time today (kids stayed over at Grandma & Grandpa's last night, and wife is at an event all day), so I decided to have some fun, running with your idea to create a Twitter bot that generates “Show HN”-style headlines:

https://twitter.com/hn_ideator

I decided to do a more rigid Madlib-style generator. Perhaps someone wants to use Markov chains to generate the page bodies for these headlines.