This post only shows your ignorance of Marxism. Under Marxist terms, a Nostr key is not private property, it is personal property. A Nostr key is not a means of production, so its socialisation does not apply. It is important to understand the concepts of personal property, private property and public property, their differences and when they apply.
There is no difference between personal and business property because the line is grey and blurred. To even talk about something on Nostr is to advertise it… which is a business.
They are different things, because for business, you can use private, public or common property, and also personal property. The type of property does not imply the type of use that can be given to it.
If I zap you bitcoins, that's a business
Yes, but this does not imply that the type of property changes. In socialism you can do small businesses with personal property, in that system what is important is your contribution to society and that your actions do not harm the rest of the community (that is why private ownership of the means of production and speculation is not allowed).
So I can sell 3d printed doodads, but not apples at the farmers market?
By that reasoning, Money is not a means of production either. Therefore Marx would be against redistributing people's Money. So which is it?
Marx did not speak of redistributing people's money, that is something proper to social-democratic and progressive ideology and that is confused with Marxist theories. In Marxism, redistribution is done through the joint ownership of the means of production and the prohibition of the exploitation of man by man.