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?
She's advocating *for* a scammer tag. How does her running a competing exchange give her a conflict of interest?
Think of it as the difference between an advocate and a judge. A judge has a conflict of interest if she has any personal stake in the outcome. A lawyer only has a conflict of interest if she gets a benefit if the outcome is adverse to the position she's representing.
I suppose you could argue that making GLBSE look bad there could be some industry spillover that makes her exchange look bad. It seems an odd thing to be concerned about though.