This place has roughly 3,000 people and was intended to be an entire replacement for DaystromInstitute and StarTrek as they were going dark indefinitely. Well, within 4 days the moderators have walked back those statements and opened both subreddits up. I see no incentive for people to come to this website now and while a few may come here in the future, most people will go to r/startrek with 600,000 people.
It’s only been about a week. It’ll take time to grow the community, and to find out if it’s dead or not.
But for your part, posting frequently should help keep it alive until it gains more users.