It's a pet peeve of mine for help text explicitly requested to go to stderr. If I asked for it, and it's long, please put it on stdout so I don't have to work harder to pipe it into $PAGER. Of course, if something's wrong and you need to give me an error message with some helpful text, it's fine to put it on stderr to lessen the chance of breaking my pipes.
in reply to Re^3: Output of a command
in thread Output of a command