I have no question the forums directly influence match making. Every time there is unanimous outrage amongst fans they take to social media and their comments are liked and agreed with amongst casuals and fights end up getting canned.
I remember when hendo vs Franklin 2 was announced . Almost instantly fans were outraged with such atrocious match making and the ufc a couple weeks later canned the idea. I know there is a poll floating around if anyone wants to necrosis it.
Edit: a poll of fans interest in hendo vs Franklin 2 that is.