Good question. Here's my take on it:
At the time, I had been led to believe that what I was doing was dedicating my life unreservedly to do God's will as he revealed it to me through the action of his holy spirit.
At the time, I had not been allowed the benefit of unbiased research and therefore, the decision was a flawed one, based on misrepresentations and outright lies.
Once I realized that there had been misrepresentations, I considered the dedication to be nul and void, because I would not have made the same decision had I not been fraudulently misled and lied to by Jehovah's Witnesses.
It would be the same kind of deal breaker as if I had married someone who had misrepresented themselves to me, whose goal in marrying me was to defraud me of my resources in some way - my time, my loyalty, my expertise, my finances. That is exactly the kind of fraud that JWs perpetrate when someone gets baptized, believing they are dedicating their life to do the will of an imaginary entity, when in reality they are signing up for slavery to a book publishing company.