I'm taking about using a license that has provisions such as "can only be used for free by entities with less than $100,000 in revenue" (this case) or "must not

I'm taking about using a license that has provisions such as "can only be used for free by entities with less than $100,000 in revenue" (this case) or "must not be used for evil" (jslint). Such a license would not be considered a free software license, because it restricts the use: https://opensource.org/osd.html https://opensource.org/osd.html As a result, the license would be incompatible with copyleft licenses. Of course, you could kindly ask your "customers" to please pay for a license in case they're using the software for some purpose. Good Luck with that.