This idea is common sense: in systems that try to provide space for public deliberation (like comments) or crowdsourced data (like restaurant reviews), participation can be limited to the parties known to have useful information to share, without losing the value of the system as a whole. Some examples:
This list is far from extensive, and it largely draws on strategies that platforms already use today. Extending this idea to any domain is as straightforward as asking "how can we tell (with reasonable confidence) that a user is in our target audience", a question that marketers have a wide swathe of approaches for answering.