Never RIPsaid: ^ I've seen fmods telling OPs that it's their responsibility to direct the thread they have created.
When the first reply and the subsequent 3 pages of the thread are not directly addressing the topic and the thread has turned in to something it was never supposed to be and OP has lost control and is unable to direct the thread as required I think that it's fine to have the thread closed.
I think that it's OPs responsibility to "iron out" the misdirection in the new thread, in the OP. And if they were to copy paste the thread that went off the rails last time, it's almost destined to go off the rails again. But that's on OP and not the fmods to direct the thread and try to keep it on track.
I think whether the OP contributes to the derail or not plays a bigger factor than derailment itself. If the OP goes away for a few days and returns to 3 pages of bickering, that can be easily hidden. If the OP actively flames or contributes to the derailment, then usually that's a valid reason to have the thread locked.
2_Tronsaid: NonMax Jakesaid: Tron, we've just had confirmation that what I said is correct. What Miu said is undeniably incorrect and we have now proven that.
... If the OP actively flames or contributes to the derailment, then usually that's a valid reason to have the thread locked. ...
^ I don't think moderators will disagree with this
Apologies if you felt my post was off-topic, I was just saying that there are a lot of factors that go into whether a thread gets locked or not through derailment, and also whether said derailment-related lock means the thread is able to be remade or not.