I would be interested to see a top level post in which the community agrees on specific heuristics which are more detrimental than others and as a result more important to eliminate.

For example: The community would agree to a high agreement level that confirmation bias would significantly help their lives to eliminate, while the community may not agree to the same level on the necessity to eliminate the information bias.

This would help narrow down the more significant biases such that we could focus on tests and games which would help us eliminate these biases, similar to what Will_Euler is suggesting.