I'll tell you why it's not based on that. Becuase you might not like - or they might not want you to see things that are popular. How much would you complain

I'll tell you why it's not based on that. Becuase you might not like - or they might not want you to see things that are popular. How much would you complain if your Twitter feed was filled with Trump tweets? Better yet, how much would they not like that!? - Sorry though it's based on reputation levels and his is up there relative to non-famous users.