He must have saved up a bunch of items that gave instant XP. Then after a certain level, most likely ran around killing all the RB and Bosses with a streamlined and methodical clan/plan, while having around 200-300% more XP combined buff. He played smart, has knowledge, and has the clan/alliance behind him to help facilitate it all. $20 in NC store packaged bundled, but probably several hundreds of millions in adena and hoarded materials, either donated or earned, to get the insta XP items needed.
I don’t know him and he doesn’t dispute the allegation of “botting” before, but no bot could pull this off. He planned brilliantly and succeeded with his plan. Well done Sir.