How does left-libertarianism differ from anarcho-communism in essence? And in general, why is it needed if there are ancap and ancom respectively?

Semyon Persunov (question accompanied by a donation of 0.00000546 BTC)

Ancom is an ideology based on the premise that individualism spoils people. A person owes too much to society and therefore must take it into account. It may be necessary to seize public resources for one’s own benefit because without this, the existence of the individual is impossible; however, the prosperity of society is primary, and then it shares with people from the common pot. Therefore, for ancoms, any separation of property from society to a specific individual must be justified.

Usually, they distinguish a category such as personal property and define it as things used for consumption rather than production. Personal property is halal, private property is haram. Clearly, this definition relies more on tradition and suffers from many flaws. I would rather suggest a slightly different criterion. It is appropriate to treat items as personal property if their use by an individual seriously reduces the attractiveness of their use for other individuals. For example, a handkerchief, a toothbrush, or socks are more appropriately personal property after the very first act of use, whereas while they lie untouched in a warehouse, they are, of course, public. A cup, for instance, might be personal property in some places and public in others; this is already a matter of local tradition. I also find it more comfortable to use a personal computer rather than configuring a public one every time as I prefer. Although, to a certain extent, the issue is solved by personal accounts on a public computer.

An anarcho-communist society can afford more personal property the wealthier it is as a whole.

Left-libertarianism is an ideology that does not encroach upon individualism as seriously. The interests of the individual are primary. But a person still owes too much to society and must take it into account. Nevertheless, due to the primacy of individual interests, for left-libertarians, any separation of property from the individual to society must be justified.

Usually, they distinguish a category such as public goods and define them as positive effects of human activity for which it is extremely difficult to ensure exclusive access. Due to this characteristic, public goods are difficult to monetize; therefore, they are presumably underproduced relative to easily monetizable market private goods. Thus, for left-libertarians, the production of public goods is a fairly strong justification for forcibly separating private property in favor of society.

Unfortunately, as soon as the production of a public good begins to be provided forcibly, it triggers a positive feedback loop, since the producer of the public good is now interested in producing as much of it as possible and demanding as large a budget as possible for it. And suddenly, the impoverished Soviet Union finds itself ahead of the entire planet in the field of ballet.

I do not know how left-libertarianism solves the problem of “when to stop forced redistribution in favor of society.” In my view, the absence of a clear boundary criterion is precisely what makes this ideology stillborn.

I will note that an ancap has such a boundary condition. When does an ancap decide that he has shared enough with society and no longer intends to? When he wants to. He treated passers-by to rakia, received enough respect, and then went home, happy, to finish the leftovers.