Surely the issues with prioritization or filtering could be solved client side, ie with your RSS reader? Configure your software to hide things with tag X or wo

Surely the issues with prioritization or filtering could be solved client side, ie with your RSS reader? Configure your software to hide things with tag X or word Y. You could even have up/down votes to train your RSS reader what is good and what is stuff you never want to see, and it could operate like a local spam filter.