"Libertarian Communism"
The only reason I'm not a communist is because I dislike control.
The only reason I'm not a libertarian is because I dislike leaving people to go hang.
So I call myself a social democrat.
Well, Marx's definition of Communism doesn't involve the state as an entity, it's decentralized. Libertarian Communists stress the "commune" part, which is a local council. In Marx's schema, those were the core governing bodies. Lenin basically abolished/exterminated the communes, which were supposed to be the organizing principle in Marx, hence Soviet "
communism" is a bit weird, since it isn't based on communes (local
elected councils), which was the entire point of why Marx called it Communism in the first place. Soviet "communism" is therefore like living in a "democracy" where ther are no elections: they can call it that (like the "Democratic" People's Republic of Korea), but it ain't so.
The difference between a Social Democrat and a Libertarian Communist, is that the first one emphasizes a nation state with a welfare net and capitalism, i.e. a top-down system, whereas the second one emphasizes local council elections / local community ownership of production, building into a network of independent units, which is a "bottom up" concept. So in this case, communes are sort of like guilds but with internal elections.
This is a core distinction: top-down social theories vs bottom-up social theories.