This has already been touched upon numerous times, but I'd like to once again stress that we should go about forming "opinions" by rigorously testing all ideas prior to implementation. The questions that we should be asking ourselves when initially considering an idea are:
1. Does the idea work?
2. If the idea works, does another one work more efficiently?
All ideas must be able to pass the test of falsifiability before being considered for implementation. If we can't see results from a test of the idea, then no one should hold an opinion regarding its practical validity.