Doesn HN delete deleted comments?
When one deletes a comment, does HN actually eventually delete it, or does it just stay in their db/files/server as "marked deleted"?
Also what about edits? Does HN keep all versions, or does it overwrite the edited comment with the new contents?
I assume nothing is ever deleted on the internet. Even comments you type out, but never submit are most likely saved by all websites (and if you use Windows/Mac, I'm assuming every single keystroke is sent back to the home base and saved). All of that is valuable data for future models.
what about all the people scraping HN or saving the feeds?