Communists are people who live on a commune.

A commune is a group of people living together and sharing possessions and responsibilities.

On one end, a group of friends who live in a house sharing food and living space, you can absolutely call them communists. And the other end of all the bad shit. Same with capitalist, where there’s multiple angles of it all.

That bad shit is tankie, where its authoritarian communists.

I hope I helped.