You can technically make money with Herbalife too. Hell, I wouldn't be surprised if a greater proportion of people made money on Herbalife versus a YouTube channel.
I am saying the same thing about blogging and online commerce explicitly.
And the supplementing your income with Uber, etc. thing is slightly different in that you get compensated for each hour you put in starting with your first hour. The big issue I have is with schemes that take time and capital investments where you probably won't make a dime.