The linked question is from 2015, and the chat bot is supposed to only post links to new questions.
The only new thing there was a comment: Is this an animation error, or just bizarre character design?
Seems like a bug. Also I'm getting "An error occurred submitting the question." on the anime's meta and I suspect all SE metas could be having problems at the moment.
It's not a bug I was just logged out from that tab and once I logged in I could see that it was a closed dupe post and it would redirect you to the primary duplicate without warning. False alarm.