Is there any conspiracy theory post that can be called "nuts" without being locked?

[Logical]

First off, I am not calling any theory nuts. This is just a "What if".

This is a valid question. If someone said Obama is a Space Alien or that Obama is a real robot would it be OK to say "You are nuts!"

Isn't there a level of crazy theory that can be called "nuts" and be 100% valid?

What about Holocaust deniers? Would insulting them be OK? I would hope so. What about Obama birthers? Ok to call them idiots?

This group is different than groups where we debate if Obama is liberal enough. Or debate how we should handle Abortion or the Death Penalty.

I would like to hear feedback from the moderators of this forum on this question.