startrek.website is a partnership between /r/StarTrek and /r/DaystromInstitute from Reddit, they've both locked their subs over there for good. Follow @startrek

I had my subscription show pending, as well, but it was working just fine. I was able to get it showing properly by unsubscribing (just clicking on the button showing it pending) and then re-subscribed and it showed me joined properly.