When there is only a few submissions I tend to agree. From looking RealWorld™ at this it is common to see a few rogue like this and no other data. I tend to just nuke them now.
On rare occasions I have found that the wrong lengths are actual data errors on the Release. Manually typed values that are wrong. Majority of cases I agree these are nearly always wrong versions \ different mixes wrongly linked.
When manually checking the latter examples it is common to find that recording linked to multiple AcoustIDs. Nuking the ones 30%+ out is nearly always a positive.
This stands out in that New Order example. The 6:49 and 3:10 Recordings have multiple AcoustIDs attached to them. And all are better matches that this 4;20 AcoustID.
This is all happening from “Lookup by Name” and no checking going on as to the results. Only have to watch the forums to see people who do “close enough” type lookups an 20000 tracks and then hit the pretty looking < Submit AcoustID > button because they don’t realise the damage it is about to do… that button needs hiding. (Especially if more than 100 tracks are being matched in one session)
Your work with the Napalm is all good. (And I don’t see anyone saying stop )
Will award you the Napalm medal for work on AcoustIDs