You need to join across all 3 tables via the userID. You can then select the latest post date by grouping by user id. Originally, I also joined onto the Followers table, but this has an unintended side-effect, so...
It will be something like below. Please do necessary change.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.