The term "Conspiracy Theory" is used very liberally these days. It is defined as "a theory that explains an event or situation as the result of a secret plan by usually powerful people or groups ... (often) contradicts the mainstream explanation for historical or current events." (Merriam-Webster) It has a very negative connotation and is often used as an insult or as a means of discrediting people. The reality is that it is really just people seeing flaws in what they are being told, questioning this, and doing their own research. We do an extensive amount of research and look at events from all angles. We prefer to call our theories "Questioning Theories." But, they are truly more than theories much of the time as there are so many facts out there if you are willing to dig.
When the government questions you it is called an investigation. When you question the government it is called a conspiracy theory.
The Term "Conspiracy Theory"
"Just because most people believe something does not make it true. Just because most people do not believe something does not make it false."