I'd say it's far far easier to prevent a JW convert than the create one. All the ingredients have to be perfect to create a new JW - especially a 'cold call' (i.e. door knocking) JW rather than the far more plentyful children/family/associates converts. Usually lonelyness or mental health problems can help create a JW
But the vast majority of people see right through the veil, and especially more so when you tell them a few things about your experiences. They all think it's pretty whacked.
Thankfully I was a very unproductive JW and converted nobody - big surprise there!