I built one 3 years ago and have been mostly pleased. It's a pain that with every point release I have to re-apply the patches for my audio to work, and migrating to new OS X versions can be nerve-wracking, but tonymac's site is an outstanding resource to help you through the process.
from the FB post "In parallel, other members of the Security team investigated the logs corresponding to this issue and confirmed that it had not been previously exploited or used maliciously."
That's not a problem unique to encryption. Firearms have good uses and bad uses - you can hunt and feed your family, or you could kill someone. With a powerful privacy advocacy group, as proposed by OP or like the EFF as mentioned by others, you can have the same voice like the NRA does to promote responsible "good" uses of firearms but for privacy technology.