IIRC the standard experimental result is that atheists who were raised religious have substantially above-average knowledge of their former religions. I am also suspicious that any recounting whatsoever of what went wrong will be greeted by, "But that's not exactly what the most sophisticated theologians say, even if it's what you remember perfectly well being taught in school!"

This obviously won't be true in my own case since Orthodox Jews who stay Orthodox will put huge amounts of cumulative effort into learning their religion's game manual over time. But by the same logic, I'm pretty sure I'm talking about a very standard element of the religion when I talk about later religious authorities being presumed to have immensely less theological knowledge than earlier authorities and hence no ability to declare earlier authorities wrong. As ever, you do not need a doctorate in invisible sky wizard to conclude that there is no invisible sky wizard, and you also don't need to know all the sophisticated excuses for why the invisible sky wizard you were told about is not exactly what the most sophisticated dupes believe they believe in (even as they go on telling children about the interventionist superparent). It'd be nice to have a standard, careful and correct explanation of why this is a valid attitude and what distinguishes it from the attitude of an adolescent who finds out everything they were told about quantum mechanics is wrong, besides the obvious distinction of net weight of experimental evidence (though really that's just enough).

LW has reportedly been key in deconverting many, many formerly religious readers. Others will of course have fled. It takes all kinds of paths.