Hi I read the post the day you posted, I am sorry that I did not reply. We have many signs around the Portal and adding more seems like it would just add to the signs not lead people to change .
Bear signs start 5 miles from the Portal, at every campsite and on many post around the Portal, bears are active in the area and things are taken from campsites, cars and on the trail. So it is not a "charlie chicken" as someone said last year.
If you see the trash can overflowing, lid will not close think about looking for another trashcan, Trash is removed at the campsite everyday around the Portal every other day so on the weekends the trash cans can become full and you may need to look for another can.
Another common problem ,Hikers are still parking in the dayuse lot next to the Pond, This lot is just past the STOP SIGN and sign that says Hikers parking starts after this lot. So at 8:30 AM we see 10 cars in this lot no fishing, waterfall trail empty, and bathrooms empty where are the people that parked those cars? Thanks Doug