Yes, but there’s a legal difference, and courts in Germany have to take Verhältnismäßigkeit into account.

You can’t sue the parents of a kid selling lemonade in their frontyard, even though it’d technically be a violation of the Lebensmittelverordnung.

Just like a small webblog which does not even qualify as Nebeneinkunft, and which is not taxable, would also be not relevant for such a case, unless you published it knowing it was illegal to make that money.