Is there or will there be a special award, badge, or event for site-wide milestone answers, comments, or questions?
For example, the person who has the 100,000th accepted answer to an ELU question might get some special acknowledgement or reputation points.
Or the person with the one millionth up vote, might have some showcase of their profile, questions, or responses.
In other contexts I've seen the Xth visitor to a site rewarded; this type of thing remains a mainstay of radio shows to promote the station.
If the answer is no, I'd be interested to know the rationale for why.
I could for instance understand if the goal of this site was quality rather than quantity; i.e. promotions may drive traffic at the expense of quality.