You do not need to examine previous answers.
My answer was there many hours before you started yours.
It would be impossible for you to overlook that an answer already existed.
By answering in full you reinforced what the students already know.
This is the best cheat site available.
They can see that even key answerers will not support each other in trying to change this reputation.
Do you notice that the original asker has been silent?
He/she has copied your answer and handed in the assignment.