1: I wasn't entirely sure of the technical number of sides of a circle, so I figured since the angle changes constantly but without variation (unlike polygons that have corners) then it only has one side. But to be honest I'm a conspiracy theorist. I bend these things so they fit
2: That was a fascinating video about the origins of the logo- very informative. I vaguely recall learning about that relationship but never realized that it applied to the logo.
3: "Down with pi, all hail Tau"- Totally with you! Have you watched any videos by Vihart on YouTube? She has an excellent explanation of why we should switch.
And, I know it's not actually a conspiracy, just an interesting discovery. My conspiracy-self is a facetious sensationalist.