There used to be hive stats posted by one of the witnesses back in the days. I believe that has turned into a monthly post. I did had a look at it a few weeks ago and the stats weren’t promising.
It is a small community here, full of upvote circles, strange curation accounts and so on.

A newcomer will notice these things rather quickly. And will move on.
So yes we do need more people here but we also should try to keep the new ones.