I now realize I should have said, "former, with labels/glue scrubbed off and thoroughly washed, Gatorade bottles". Actually, they didn't even originally contain Gatorade -
The problem isn't with brands of containers or clean or empty. The problem is with sloppy statements that are dangerously inapplicable at some entry/exit points that many people pass thru on their way to the high country. The behaviors that may be safe around wild bears cannot be expected to be safe around human-habituated bears.
People who give you advice that only applies to wild bears without that warning are doing you a disservice. Even with proper warning it is still your responsibility to know what kind of bear area you are traveling through at any time and that can change over time depending on the behavior of other people who have been there before you.
Dale B. Dalrymple