I actually agree with the system they have. I don't want 'all' to be full of toxic communities that ban any newcomer for (often unknowingly) challenging their narrative. If I see a topic on all that interests me I'd like to contribute even if it goes against the grain of that sub, simple as. The alternative is a front page in which half the discussions are off limits to me, and I have to start filtering them like on reddit. My only problem is that the self-censoring makes discovery of niche subs more difficult.