This is like saying why do you need niche news websites like HN, when anything mainstreem will be on the 3-letter channel and everything else will be obscure, u

This is like saying why do you need niche news websites like HN, when anything mainstreem will be on the 3-letter channel and everything else will be obscure, unpopular stuff. It's true, private trackers generally are "obscure" if you consider every person in the world (just like the majority of the world doesn't read HN). But if you niche down to your basic interests, then there are good private torrent trackers that will generally have almost everything worth having in that area.