The point of Area51 is to get critical mass for an idea for a SE site and this is done by building a community. I would argue that we should reward those who show that they can successfully build a community. If someone refers someone else to a SE proposal and that person then ends up following it, then the referrer should be given a rep award on Area51, or maybe a (bronze) badge. Not exactly sure what the award should be right now as I'm just getting acquainted with things there and don't have a good gauge on balance.
What is meta?
- Any Stack Exchange user can ask a question
- The community provides support, votes on ideas, and reports bugs
- Your voice helps shape the way Stack Exchange operates
This was completed in the Mafia Wars: The Area 51 Commitment Phase question.
The sentiment is admirable but the semantics and implementation would probably be pretty hairy. For now, I would suggest that the "reward" for getting experts to follow your site is that you get a fantastic proposal.