Many people called crazy in the past for preaching these so called "conspiracy theories" have turned in to "conspiracy reality". Calling people crazy now because they say a new world order is upon us, aliens will visit or the WTC attacks were an inside job isn't a good idea, since they could all ring true at some stage. All these things deserve a second thought for those that are interested.
One day you might end up with egg on your face if proven otherwise....And called a sheep.
EDIT: I recommend keeping an open mind for all matters. Its more fun and you can strike some interesting debates. Its a bit hard on the internet thought. There is always one twit that wants nothing more than to crash your party.