Pity RSS is one-way. There's no standard way of comment or doing iteractions.
It took me 20 years to decide maybe they were right. A bunch if Reddits more tightly associated with a set of websites and users than with a centralized ad platform would be fairly good - if you had browser support for handling the syndicated comments. You could have one for your friends or colleagues, one for watchdog groups to discuss their fact checking or responses to a new campaign by a troublesome company.