Quote from WhyByFlyer:
"As for the stuff online - I tend to read it with caution and use the company provided manuals as my reference. Something like that could have been written by someone who has misinterpreted it or has not updated it."
Very true, and one must include this forum in that caveat; including the statements and opinions of old farts like me.
Trouble is, posters so often have the experience and intellect to make valuable contributions to a discussion, but are hampered by a lack of current, type-specific information - including FCOMs. As I write, the threads on the B787 battery problems are a good example of this problem.