Sry, I am a new user. Can someone please kindly explain to me the topics merge rules or the logic behind it. This topic "     Ilhan Omar campaign strategist's wife claims Omar is having an affair with her husband" has been merged with "The road to 2020" (2020 United States presidential election). Then, this 3 topics "Snopes is Utter Crap/Kamala Harris is Likely Descended from Slave Owners" and  "Bernie Sanders, at 77, Just Learning the Basics - Socialism is an Epic Failure", and "The Squad