We're probably cross purposes, but, yes, you can view posts in isolation if directly linked to that individual post.
But try to go anywhere 'related' or follow a trail of replies and you're blocked by either a login prompt or a post limit or some other guest-unfriendly pattern. And that means, for me personally, that the original 'thing' is not worth the time because I can't follow the train of thought that it creates - which is probably why it's designed that way: annoy people into signing up.
I can not and will not reward that (mostly, I'm probably hypocritical in a couple of facets of my life choices).