I think having to get a license to do business in full liability is a terrible limitation of freedom, even when it does not cost money. Taxes on business income

I think having to get a license to do business in full liability is a terrible limitation of freedom, even when it does not cost money. Taxes on business income of course are more justified, I'm complaining merely about the requirement to get a license to do business. That being said, you probably should not enable advertising on a blog before it has a substantial readership.