What exactly does the moderator-assigned "status-bydesign" tag mean? What other moderator only tags are there, and what are their meanings?
Status-bydesign is the response to a bug/feature request stating that this is the intended behavior.
Status-completed means the feature/bug fix has been implemented.
Status-declined means the feature request is "rejected" and will not be implemented.
Status-norepro means a bug cannot be duplicated
Status-planned is a feature that is being planned.
Status-review is a bug/feature being reviewed.
Status-reproduced is a bug that has been successfully reproduced.
I'm not sure what status-deffered is intended to mean.
I believe there is also a status-accepted (though there are none currently) which would be when a feature request has been accepted, but has not been completed yet.
Status-bydesign: The problem someone is complaining about is there by design.
Status-completed: The request has been taken care of.
Status-declined: The request will not be implemented.
Status-norepro: We are unable to reproduce the bug.
Status-deferred: We are planning to look at this issue in the future.
Status-planned: We are have already planned a fix.
Status-review: We are reviewing your request.
Status-reproduced: We've reproduced your bug, and are trying to figure it out.