A friend of mine already invented a similar filter with the Informed Individual app. It's a filter based app where you can make purchases with filters that align with your own philosophy. So let's say you've got Celiac disease, and you just put on that filter to avoid foods that could hurt you. But it goes further. Say you're an avid environmentalist, and you could employ the filter of your organization for foods to avoid for political or environmental reasons.

My filter would probably be something like "reorder comments by personalized pagerank of their authors, computed over comment likes, with me as the root".