seeding the onboarding experience with random content that you fine tune later is better than showing an empty state and is an acceptable default experience IMO

If you joined Usenet, you would need to know what groups to subscribe to

IRC? sift through the list of public channels or get invited to the secret ones

the random feed is lower friction than going through multiple steps asking what your interests are, and even if you that, the content might not be what you’re looking for