It’s an interesting situation Phizzy, the demands of the WT cult involve conformity and being seen to be part of the membership is part of being in the JW social club. If you no longer believe the WT tripe, to get around being shunned members become PIMO. (Phisically In Mentally Out) PIMOs have to put up with severe frustration knowing JWs are a fraud but locked in socially and POMIs live with the guilt of believing but don’t attend, I don’t know which is worse.
I spoke with a PIMO friend today and he thought about about 6 out of 70 (9%) of the attendees in his cong are PIMO. These do not answer up at meetings, have absolute minimum contribution to the org, they just attend. This figure does not include those conflicted souls who carry on a pretense of believing. Perhaps another what 3 or 5%, how can we know? Then there probably is a larger proportion who have major doubts and given an excuse or opportunity would love to be free of the org. So I reckon about one million JWs don’t really believe and another million would leave given the dropping of shunning penalties.
The big difficulty is that awake JWs cannot get together to plan a mass breakout because to admit being PIMO is likely to be rewarded by an inquisition and then shunning—at the moment.
As Wake me points out from Pinker's quote, the situation could escalate to the extent that PIMO's will become the norm and only the true believers will remain unable to see the fraud. The religion will become a hollow shell, all about appearances, and is likely to implode eventually when a majority are just seat fillers. The young in particular these days are not believers just club members.