“Hello, I would like to benefit from society without contributing to it”

Defederating brigaders and trolls is necessary to maintain a healthy community. If your instance is defederated from all major instances, perhaps you should look examine what sort of company you keep.

Yugoslavia was a market economy in eastern europe under socialism.

There was a limited amount of pseudo-private “workers collective” (OOUR) companies starting from the mid 70s all the way to the breakup. It was certainly not a market economy in any meaningful way. The entire economy was propped up by foreign loans, which was a cause of so much inflation that the currency had to be re-adjusted twice, starting from the late 60s.