Originally Posted by
Baradium
No, because by day of that other pilot has likely already made alternative plans. He has made it more likely that an offline jumpseater will get it because he prevented other online pilots from booking it themselves.
If you are trying to get on an earlier flight anyway, the commuter policy guarantees you will get on your second one. There is no reason to put a hold on the jumpseat and prevent someone else from being able to use it who wants to use that flight as their first one.
I wish all of us understood this as clearly as you have written it. JS should only be used for your Primary flight, you already have PS on your backup without blocking out someone else.