Facebook does not like people who promote alternative social media sites, but they are okay with people who promote personal web sites.
So, I think the best approach is to create a personal web site that sits between you and facebook. The personal web site would have the onboarding scoop.
Having a personal site might help you interface with other scientific groups.
Some scientists like programming, others like math. I think the mathematics of the rewards pool is quite interesting.
From a programmer's perspective, the ability to access the data in the rewards pool is interesting.