[gnarmis]

points of view aren't all equally valid. Example: any pov about something that can be factually checked.

[scottefein12]

Sure, but if you shut out people you'll never find out if they're valid or not.

[MichaelGG]

What does that mean? I can generate an infinite amount of nonsense ideas. Or worse, a good amount of superficially-nice-sounding-but-terribly-flawed ideas. You can't consider every "point of view", if only from the fact that there's limited time.