>>10416993He ripped off a customizer over this.
Like the guy made parts for part of some upgrade package that some other guy was putting together that took a bunch of parts from different customizers and sold them as a limited set, and part of the selling point to get those customizers to get in on making things for the set is that the set would be promoted on D Amazing's YouTube channel.
He knew who was making parts for the set and said nothing, knowing that he hated one of the guys who was making parts for the set because that guy had beef with one of his sponsors.
So he gets the upgrade kit from them, doesn't show that guys parts, has the guys name blacked out from the box, and pretended they never existed.
When asked by the organizer why he did this, since now the organizer had a pissed off dude who didn't get the promotion that was promised, D just said "He knows what he did."