Reader feedback mechanism

We waited 9 near before Wikipedia created this for brainstorming ;)

Beside your idea caught the attention of Sue Gardner, someone from the Foundation and she seems supportive to it.

If it can be technically done and i think it is so, the remaining hurdle is the modalities of implementation.

Surveys across a category won't be much a problem because the large number of the "experimental set" can balance issue coming from few of them. The issue is survey on one article which can turn awful if people start PoV pushing using it.