Good points. Lobsters may be a bit small, but it looks like a different niche so maybe Saidit and Lobsters could partner in some way. Lobsters for in-depth tech discussion, Saidit for more general chat, or something like that.

Both telling and showing are important. People will never find the site if they're not told about it, but they won't stay if they aren't shown its value.

I'm not sure how possible it is to guarantee good posts on the frontpage, but even just suggesting that people post and upvote more quality content could help. It would be great to see quality content that can appeal to new audiences, that at the same time isn't too "basic" (e.g. low-effort memes or clickbait articles).