This fight should only happen at 135... First, There is no 145 title. There is only 135 in the UFC. So what is the UFC supposed to do... Suppose they fight at 145 as a one time thing to "prove" Ronda is the baddest. Cyborg wins... Then what? You have a discredited your 135 champ, and Cyborg then has no one to fight? Second, the steroids issue is valid. Cyborg looks like a female bodybuilder who's been juicing for a long time. With steroids she fought at 145... Stands to reason that without steroids she could make 135. Furthermore, its fair for her to have to make weight at least once at 135 before she fights Ronda, or she'll probably just show up at 145 anyway.
As far as I can tell Cyborg is trying to get herself every advantage possible legal or illegal.