here is an entire book filled with examples of it working
https://theanarchistlibrary.org/library/peter-gelderloos-anarchy-works
you should really look up revolutionary spain, it took less than a week for the workers to start living better under communism than they did capitalism
Sad thing is that the author might never read it and say: "Franco crushed them, thus I-Slam-Mic Gummunism debunkled! XD"