Yes appeals can be denied, or accepted. That's kinda how this works. There is a higher amount of denied appeals since punishments are almost always right and fair going off our rules.
The first time you were unbanned. You had been previously banned for sharing exploits. Found by sharing the sheet with the wrong person.
The second time you were ban for the same thing, being found by sharing the sheet with the same person.
It's not a matter of if the exploits were working or not. The rule is "No sharing exploits", which you got caught doing twice in the same way.
Also, While I can't speak for Justin. I can't exactly disagree with him, looking back on that time.
Any more discussions opened about this will be closed and lead to an account suspension. Because I believe it's clear that we are just going in circles here. You were given your second chance, and threw it away.