From what I've seen around the net, many people have this fat and trans "bug" happen first for a lengthy period of time soon after joining before it "gets to normal."
For a few others (including myself), it just randomly starts happening one day then goes endlessly. (Some have stated that they eventually got through the long "wave" of endless back to back to back fats and trans and have returned to normal).
There are also the group who say the waves come and go.
Therefore....... Not sure what to conclude. If the people saying it's our pics or our own profile causing it, then I am very amazed at how great our profiles and pics can be one moment and how terrible they can suddenly become the next... like a stock market share... to cause such a back and forth fluctuation. If it is a result of ELO score, then still, something needs to be fixed if the score keeps having dramatic fluctuations out of the blue for those of us in the US and UK seeing the long extended waves of fat men and women.
