I didn't read Solrize's comment as saying "There shouldn't be paywalls," just asking the very legitimate question as to how they will interact with federation.
Interestingly, 404 just solved something kinda related: they developed a way for subscribers to get a custom RSS feed address, so they can access paywalled articles directly in their RSS reader. TMK, they are the first publication to do this. I imagine they would do something similar for federation. (I believe that if any of the custom RSS feeds show huge traffic numbers, 404 shuts it down, but I'm not sure)
Are there any launchers that have Nova's 2 best features?
I've tried Lawnchair and it was missing these 2 features. I will switch to any launcher that supports these!