Comment by bee_rider

You opt into making your writing publicly available when making posts on this site. I’m not sure what Ycombinator’s user agreement* says about this, but it is pretty obvious that they haven’t done anything to prevent it (and it isn’t clear what they could do).

* and I mean they author of the tool is here making posts, so I guess they have agreed to the TOS, but clearly someone who hasn’t agreed to it could also make this tool and scrape out publicly available posts without agreeing to anything.