Yeah I had issues with bears in that exact same area last year as well. In 2 of the 3 incidents (same week), I found a sad amount of trash left over from weekend campers. The watch tower near there has an old well, that had a full trashbag's worth of fresh styrofoam boxes at the bottom. The Ridge runner at Mollies told me he'd already had to clean out that well a couple times. I also found bears eating oatmeal wrappers at the primitive campsites. I did NOT stay at my permitted site that night because of the visible bears interested in trash. The ridge runner I encountered later, encouraged me and said, "oh they're probably gone now. You should head back". I responded no thanks budd, I'm fine breaking permit(keep hiking) if the campsite is actually unsafe."
Campsites away from fontana dam had much less aggressive bear activity. Though still had some reports where people made food easy.
I understand bear encounters happen everywhere. But I've been really fortunate to not find issues with trash like that in other parks, and I've likewise found the bears alot less interested in me.
If GSMNP wants to fix the issue, I think more frequent patrols between Fontana and mollies would really help (10 miles roundtrip). Just a visible prescense would help and a friendly: "Hey folks, how's it goin. Where ya stayin? Oh we'd like to ask you to kindly double check your campsite for trash when you leave, we've had a problem with bears in this area." As it stands, it appeared to me like the park service was really pushing a lot on the ridge runners.
Lastly, it would scare the pee&poo out of me if a bear grabbed me out of a hammock.