O.P " What is the dumbest J.W belief"
The answer is those beliefs never read by current members.
Supposedly all this J.W noncence started with "JESUS" who " WROTE "The finnished mystery" and the founder member of this organisation only translated it.
So its a no-brainer, the " truth" started with a book named the " finished mystery" which was supposedly written by " JESUS" But instead of being mandatory reading a new " fuck.r" named Rutherford" wrote more books of noncence.....and now overv 100 years of "bullshit" and " bullshiters" later, we have " Geoffrey Jackson" to continue the " bullshit".
Sadly millions of people still belief this " bullshit" ...and the irony is we have a thread that could become " minimus" longest ever thread if we make a list of W.T dumbest " bullshit"