Fresh char means it has just dinged 2 minutes ago. They have a level 4-5 neck and 90k hp (no main to funnel benthic gear). I wasn't sure about Nazj, because I only opened it up on 2-3 characters, so seems like nazj drags the neck up. Good. Still it's not not a farm for the neck. Doing outdated reps and emissaries is farming.
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Can you read what my comment was an answer to? someone suggested that neck AP farm is not a thing anymore. If you have a fresh 120 with a neck level 4-5, then it's simply not true.