"Pure, unregulated capitalism,"

Capitalism established with a pre/flash-mine. So more like communism, really, where the party apparatchiks got everything at the start, and all the scraps going forward are spread around the plebs roughly equally.

"There is no central authority on reddit, so nobody can ban anyone."

I'd disagree. Some reddits are total cesspools of censorship. Look at r/Bitcoin. Absolute propaganda front.