Mentally rewriting the beginning of your last paragraph to "Sometimes Java or C++ is the right language to use, but most..." made it make considerably more sense to me.
As it stands, I think the double-aren't is colloquial or a mistake; I honestly couldn't follow the meaning of the overall triple-negative. :) Not trying to be a jerk - I love reading your stuff, but I spent more than a minute thinking about that sentence before just guessing it from the rest of what you said.
As it stands, I think the double-aren't is colloquial or a mistake; I honestly couldn't follow the meaning of the overall triple-negative. :) Not trying to be a jerk - I love reading your stuff, but I spent more than a minute thinking about that sentence before just guessing it from the rest of what you said.