Following the ScienceSeeker launch, I saw various questions about the site on Twitter. If you have questions, ask them here, and we will answer!
Some questions I can answer now: yes, there is a rudimentary API to let people access posts directly; I will post more about that later. Yes, we do want to make the code for the site re-usable by other communities, so it is not limited to science topics in theory (see the job listings — we are looking for someone to help usher the code through an open source release so that others can use it to set up similar sites about other topics).
What else do you want to know? Ask here.