I still think the answer is 2. I arrive at this because I used the internets ;-).
This next example displays an issue that almost never arises but, when it does, there seems to be no end to the arguing.
* Simplify 16 ÷ 2[8 – 3(4 – 2)] + 1.
16 ÷ 2[8 – 3(4 – 2)] + 1...