I did read what you said; that's why I quoted part of it.

I think "I make explosives for YouTube revenue" falls squarely within the business territory.

https://www.law.cornell.edu/cfr/text/27/555.161

See also: https://www.law.cornell.edu/cfr/text/27/555.11

> Licensed manufacturer. A manufacturer licensed under this part to engage in the business of manufacturing explosive materials for purposes of sale or distribution or for his own use.