Yes ethics, as in the thought of making all information freely available, means that same information can and will be freely abused. If some building manager uses your blog to troubleshoot his elevator and dies, will you simply hide behind your line of, get an elevator professional? Will you feel no remorse, or second doubts to posting all this stuff openly?

I can say this about my time in the trade, working for one of the big 4 of course, no information was ever unobtainable. If the information I needed was not readily available I was never expected to do the work. Maybe for the small Indy companies this is different, but I would expect the information that their techs have would cover 85-90% of all they would need, and that remaining 10-15%? That's what friends are for!

Feel free to post away though, will be an interesting read if the big 4 ever care to get involved. Just pray every night that no one ever gets hurt using your incomplete information.