About the trending pages. I give you the example of brazilian channel Terca Livre. Until last week almost all livestreaming of this channel was on trendings on Youtube. Since there no more this channel succeed be on youtube's trendings more. Every night the livestreaming there have at least 1500 to 2500 viewers same time. When the livestreaming of this channel was on trending it's reach more than 8,000 viewers at once on one livestream. since youtube no put more theses lives on trending the reach of them decay to 2,000 to 2,500 per each livestreaming.