Two Elders came to my door, a few years after I had left, the younger of the two, newly appointed, told me the Governing Body had asked them to call on me, as if THAT half-truth would impress me.
The older of the two got on to the matter of DFing people, somehow, and I said "Well, you can't DF me, I have never been a part of the religion as it is now, you J.W's have changed all the fundamental teachings ! ". I was referring mainly to the laughable overlapping generation nonsense.
I think if you left before that change, what I said is a good thing to say, telling them they no longer have any power over you.
I concur with the advice not to D.A. For anyone ! when you first leave it is tempting, to get some closure, but the J.W's do not suffer if you do it, you do.