Unfortunately, if you use the old version, you will also not have access to the newest mod tools, including a lot of sub settings. But the old version works fine for reading and commenting.
I for one don't have an account, so I would get nagged by their popups constantly.
It was a perfectly fine website, they ruined it completely for me.
I'm constantly directed to www.
That's obvious as I've disabled JS for the domain, and so get an empty page with a spinner.
It's a clusterfsck.
I would have left reddit a long time ago if I were forced to use the terrible new UI. The fact that they still keep it around, years later, is a telling sign. When you are so scared of your own decisions, you know you messed up.
Going to www, with the setting as specified, does not behave as you describe.
Reddit: Stop it. I'm aware there's a mobile app. If I wanted to use it then I would. I don't need to see an advertisement for it on every damn page.