cuz if pepole buy your things you get money
hope this helps.im not 100% sure
It wpuld be
you can lose ranking 2 ways.
1) you don't have enough points due to you expending them by asking questions/your answers are deleted.
2) your brainliest's expired. this means that brainliests, once they exceed the 30 day limit, expires. this is to ensure that you continue to contribute into the community at a constant rank if you want to continue to have/exceed the rank you have right now.
if you go to profile, and click "show more information" located on the bottom left of the box with your information (on top of the questions answered, questions asked, and friends), you will be given the following information (example):
member since : 02/13/2017, 18: 11
questions answered: 9741
questions asked: 162
no. of brainliest answers: 1575
brainliest answers in last 30 days: 10
warnings: 0 view
questions/answers reported: 2637
questions/answers incorrectly reported: 64
look at the "brainliest answers in the last 30 days". this is the one that will affect your rank other than your points. again, once your brainliest expires (was earned 31+ days ago), it will not be counted.
the best way to learn how to declare a major is to talk to a admissions office.