Since Flower denied the idea I guess I can reveal what my methodology would've been.What sort of contradictions do you expect to come from this?
I would've looked mostly for people trying to make it seem like they have a useless role when they don't.
It would've been easier for most to just give a neutral score (5 out of 10 or 3 out of 5) as that doesn't say much either way, but for people who go out of their way to give intentionally low scores they would have to act consistent with that and show consistent disappointment at their supposed "uselessness". And I thought it wouldn't be so easy to fake that.
Once D3 starts and the restriction is lifted we are going to get a lot of roleclaiming I imagine. So that would've also gone to show how fake or genuine people's initial ratings were.