>>936636584
>Flat earth
Well poisoning by Feds to try to discredit other conspiracy theorists by making them all seem retarded. I doubt there are very many serious proponents of that theory. Mostly its controlled opposition plants.

As for my take on all those other ones, it varies case by case. I don't blindly believe every conspiracy theory that exists, but there is a lot of compelling reasons to look deeper into some of them.