Been to Yellowstone about five times in the last 10-12 years. Have yet to see one stinking bear.
Seen blacks (bears) there, never a grizzly though one probably cruised by my tent one night. Like the wolves, you have to either be lucky or go looking. Which I don’t, my wife doesn’t like bears. The couple times I’ve seen blacks I’ve noticed tourists first. The idiots walk off in the meadows and approach the bears, who don’t eat them. I watch with binoculars.
And here I thought it was just me having that kind of experience. My wife and I spent 7 days in the Grand Teton & Yelllowstone area in 2009, RV camping in GT. The fellow in the space next to us said a black bear marched right between our spaces at lunch one day but we were out in the park or Jackson WY.
The first thing my family and I saw when we drove into Yellowstone was a grizzly bear. This was in 2012. It was catching fish in the Soda Butte right off the main road.