Thanks for the HN hug of death everyone :) As some speculated, we just blew past our rate limit. We're trying to get that raised, but in the meantime the website should better communicate that to you.
I hit that one when I said "driving 202mph at rush hour".
I don't think it was the content filter. The next query I did was "stabbing an orphan" which yielded this hilarious response from the toss-up bot:
> NTA, but would be nice if you could confirm that it is indeed a genuine orphan (i.e. no adult relatives). It would also be good to know the cause of death so that we can give proper praise to the gods.
It's not! I submitted an AITA scenario that I made up on the spot and got a set of surprisingly convincing responses. Hopefully they'll get this load issue sorted out and you will be able to give it a try for yourself.