The main distinction between anarcho–capitalists and other anarchists is the support of capitalism. Other anarchists have problems with either private neo–Lockean property, profiting from other people’s labour, or both.
The nineteenth century individualist anarchists are mutualists; they opposed “usury” — profit from land or capital or wage–labour. “Cost is the limit of price” was their motto, summing up their interpretation of the labour theory of value.
Anarcho–socialists not only oppose profit, but also oppose private ownership of capital (“the means of production” in soc–speak).
Of the four basic economic divisions of anarchism, collectivists and mutualists are anti–capitalist, while geoanarchists and anarcho–capitalists are pro–capitalist.