Erik,

Never trade quality for cost. Then make the most cost efficient product..

This is part of what i call the "real cost" scenario and as you indicate is "Rule One".

How does one identify whether a question in this forum comes from an amateur or an employee

While it shows "a lot of the time". You can't always tell. That's why i wouldn't argue that you to change your approach.

Now i think it's easier to detect those who imagine a career in engineering as you have to be a little bit crazy.

regards,
p