The researcher who accidentally submitted two versions of the same paper to ACL ARR and got desk-rejected has a story that should make every academic pause. Their mistake was simple: they submitted twice instead of updating the original, then emailed support asking how to withdraw the earlier version. They were waiting for a reply when the rejection landed. The good news is that after reaching out, and after posting about it publicly, the rejection was reverted. That outcome is not guaranteed for everyone, but it reveals something important about how these systems actually work.
What this means for you is straightforward: human judgment still operates inside automated review processes. The desk rejection was triggered by a rule, two versions of the same paper in the same cycle, but the rule exists to prevent deliberate duplicate submissions, not honest mistakes. The researcher's email to support was the right move, even though it didn't arrive in time. What saved them was following up, clarifying the intent, and treating the process as something that can be corrected. You should assume the same. If you find yourself in a procedural error, document your actions, explain your intent, and contact support directly. Do not assume the rejection is final just because it arrived first.
The practical lesson here is about timing and communication. The researcher sent their withdrawal request a week before the rejection. That gap matters. If you submit something and realize you need to change it, do not wait for a reply to confirm the fix is in progress. Send the request, but also check the submission portal for any visible status changes. If the system shows two active submissions, that is your warning. The rule about duplicates is not hidden, it is in the submission guidelines, but it is easy to miss when you are focused on getting the paper right. Now you know: read that section before you click submit, and if you make a mistake, act immediately and expect a delay.
End on this concrete point: the next time you submit to ACL ARR or any review system, treat the submission portal as a live tool, not a static form. Check your submission list after you upload. If you see a duplicate, withdraw the extra version yourself if the system allows it, or send a clear email with a subject line that includes "URGENT: duplicate correction" so it gets routed faster. The researcher's mistake became a lesson because they followed up and the system responded. You can learn from their experience without having to live through it yourself.