Long story short: Collect/crosspost all episode discussions in /c/watchparty (or similar).
With a lot of shows I watch (not just Trek) I always found myself reading and sometimes engaging with the episode discussion, however, the meme and speculation and everything stream that came with the show-associated subreddit always was a bit much for me -- my interest waxes and wanes with things actually being on air, so I never subscribed.
A dedicated stream for that kind of stuff would be very much welcomed, also a low-churn news feed (such as "Show has been announced/renewed" etc).