Reddit was never normie hostile. It may have not been mainstream but hostile to your average user, no. You logged in with a browser like Facebook, you could subscribe or not to any subreddit you wish, those subscriptions would show up on any browser/mobile app you logged in on, everything was stored for you server side. Centralization is what most normal people expect. They don't want to futz around with remember things or having to setup the clients every time they switch. They want it all there every time on every device.