Will proofofbrain.io become the premiere 'landing page' for future content developers?
Quite possibly, the proofofbrain.io portal may become the single starting-point for folks who want to post and/or curate online content in the future.
Of course, to do that, it will need tools (customizable filters, etc.) to help direct folks to the specific tribes / communities / topics they are most interested in.
LeoFinance has developed a great starting portal for those who are interested in crypto and finance; Leo's enhancements to condenser are first rate. However, LeoFinance is narrow in focus, thus not lending itself well to be the 'go to' starting portal (which is fine -- that's not their aim).
The fact that proofofbrain.io is starting out completely generic will cause it to be a bit chaotic at first, but it may very well eventually become the primary landing page for future online content creators.
That's my $0.02, anyways.