[8note]

Giving it away for free, you are ensuring there isn't a consulting gig that charges for giving helpful answers.

[sfink]

Putting your trash in a trash can is unethical. Leaving it on the street provides employment to trash collectors who need a job.

Obeying the law is unethical. Think of the poor laid off police officers.

The fact that information can be duplicated with zero cost is a feature, not a bug.