P.S. to my previous post: There's one more possible effect I can think of that doing this may have in some systems. If the two components that are being connected are susceptible to ground loop issues (which might take the form of high frequency noise and/or a reduction of "background blackness," as well as or instead of low frequency hum), the lowered resistance of the ground connection between the components might reduce the severity of that issue to some degree.
Regards,
-- Al
Regards,
-- Al