So long as all the burner ports are clear and it burns controllable there is unlikely to be a problem with function.  Possibly loose stuff under the grill could cause a problem blocking the valve at some point since it will not burn off under there but its probably unlikely.

As to bears etc, your pot is going smell much more.  In any case you should be storing your cooking gear with your food in the bear hang or your bear can along with any other fragrant things (toiletries etc) some distance away from where you sleep.  Some people put their pot on top their bear can so they will make a noise if the can is disturbed ...probably a good idea with a bear hang too.  What is best depends on the location and the type of bear activity that occurs there.