You're trying to have the cake and eat it.
There are other benefits for the STEMgeeks community too. While I do not know whether STEMgeeks is in the SEO whitelist, the site only benefits SEO perks (traffic) if the post is submitted through their frontend. So, because you don't like sharing cake, the STEMgeeks community doesn't get to eat it either because if you post through Peakd, the SEO traffic goes to Peakd.