Theorizing is only one step along the pathway to knowledge. A theory must be substantiated with evidence and argumentation to become knowledge, epistemologically. A similar argument pertains with regard to the law and the standard of evidence needed to establish forensic proof.
If a distinction between theory and knowledge were more rigorously maintained, we would be far less deserving of the “conspiracy theorist” epithet. Even here, some anons are all too ready to leap to conclusions on the flimsiest of information.