Ive notices the same thing over the last 6 years in the San Isabel and San Juan National Forests in Colorado and have similar feelings regarding the bears there losing their fear of humans in that area also.
The first time I had bear circling my tent while we were sleeping.. was definetly something I wont forget. The person I was with woke up and assumed it was a person and when they didn't get an answer from yelling who's there several times... I figured I better let them know it wasn't a person. They shut up and grabbed there gun real quick.
In an area I don't really want to name.... I see bears every day. They arn't afdraid like the blacks I run into further noth in the state where its more populated...and it was not that way camping 6 years ago.