you are in over your head if you think replacing a currency with a different currency pegged to the value of labor is communist. Socialist, maybe, communist, not even a little.
This document is very dated and fairly simplistic but it's a good 101 basis for what we believe. Just so we're speaking eye to eye, go read this (it's very short and light reading, don't worry), then come back, and use this definition of communism. It's the definition that communists actually use and it'll do you well to know your enemy before you pick fights with them.
https://www.marxists.org/archive/marx/works/1847/11/prin-com.htm jk the Manifesto is more relevant here, a little less short and substantially more dense but if you're gonna argue with Marxists about Marxism you should probably read the 23 page pamphlet that Marx is actually famous for https://www.marxists.org/admin/books/manifesto/Manifesto.pdf
That's still money. It's just pegged to something besides a bar of gold.