Nefario isn't a scammer. He's just made some poor decisions for GLBSE from a customer relations standpoint. You can solve this by creating competition.
What, if any, is your ownership stake in GLBSE?
No offense, but you shouldn't really be saying that he has a conflict of interest here.
Have you ever thought of how you run a competing exchange?
No offense, but I am creeped out by midgets.
Anyway, MPOE-PR's conflict of interest is irrelevant. She can't apply a scammer tag to Nefario, although I'm sure she would like to do so. Her interest is also very clearly stated, not undisclosed.
Maged, however, has a history of arbitrary decisions that aren't informed by fact. He's loyal, which is commendable, but biased.
Keep in mind that while this forum derives its value from content created by its users, it does not belong to the users. The "court" is a handful (?) of admins/mods/whatever that make their decision based on what is presented, what they can mine from PMs and other sources, and their own interests.
While her method of asking Maged to declare his bias is brusque, it's to the point. The nature of Maged's (obvious) bias is relevant in that it will determine the amount of supporting evidence is necessary to change his mind (or to convince another person or group capable of putting a scammer tag on nefario).