They’ve all been chased away by atheist trolls.
I’ve seen this happen many times on Internet forums. A smart, self-aware theist joins a forum looking for quality engagement. Instead the hordes of atheists all collectively throw their shit at him like so many monkeys. I try to protect them, but eventually they all leave the community, citing the same thing.
They could fight one atheist, even a small group of them.
But atheists have taken over the Internet and made every non-religiously-focused community an extremely hostile place for belief. And worse, nobody calls them out on it. They see it as their right to be absolute asses to people who don’t think the way they do.
So yeah. These rare birds have all flown south for the winter. And that winter is never going to end.