I don’t think lemmy is still growing. I might be wrong but this graph https://fedidb.org/current-events/threadiverse
is trending down and i’ve seen a lot of smaller magazines/communities that haven’t had any posts for 1-2weeks by now.
I try to help that problem at little but i doubt lemmy&kbin has >100k active users right now.
According to the graph it accounts for active users within the last 30 days. 30Days ago the reddit strike started and an influx of people started posting. I wouldn’t be surprised if a lot of people haven’t been here since. There was a lot of performance and other issues with lemmy&kbin at that time.