> Edit: can't reply

That's strange. You mean you can't see the "reply" button or there's something else? I just have seen this only once (no "reply" button"), and reloading after a couple of minutes helped. Not sure if it's your case though.

> The "SaaSpocalypse" [0].

I'm very grateful that you have decided to spend your time explaining this. Seriously, I am. Thank you very much. I now understand that way better than before.

HN rate limits replies for some or all users. Could be triggered automatically based on the controversiality of a post (I think) or some posters might get marked for it permanently by a moderator.