Discover is now private and tailored to people you follow. Search is now the only global and public feed showing last post from each member. Resumes are now in testing, they might or might not work.
I wonder if replies shouldn't be private as well, I mean only visible to logged people. You would still see main posts (and only liked main posts as well) but you would have to login to read the whole thread... It would maybe be an additional incentive to register. Not sure if it's a good idea though... :)