In page 10 of the Correspondence Guidelines, in the section of Apostasy" I found the following:
One who has sincere doubts or
questions should be kindly aided in
the spirit of Galatians...
I am forced to conclude that many of you didn't get any aid because your doubts were fake. So according to the WT manual, your main sin may have not been doubting, but faking having doubts. So, I guess it's impossible to be an apostate. If you have sincere doubts you get help, but most of you didn't get help. Consequently, your doubts were not sincere, and we can conclude that you are still a believer, not an apostate.
Help me, English is not my first language. Am I missing something?