I’ve always thought it was better to browse all and filter out things that don’t interest me rather than try and only subscribe to things that I already know I like. I end up finding communities and discussion that I never would have found otherwise, and honestly, I can’t fathom why that isn’t the default/most popular way of using aggregated sites like this.
It’s kinda like listening to the same 3 albums over and over again just because you already know you like that music vs just letting a station play and skipping the songs that aren’t working out for you.