Then that just means everything you’re looking for is common or freshly released/uploaded.

Ppl looking for niche content, it’s not gonna be on public trackers as often.

Also the main benefit of private vs Public is that you can find a 10-15 year old torrent of some niche content and it will still be actively seeded.

With public trackers, there is less retention of seeders, even more so for less common content.

Public trackers often end up with tons of dead torrents with 0-1 seeders after a couple years pass.

And on a private tracker there is incentive to keep old torrents alive. On public there is none. Ppl grab and run.