A causal claim, by definition, is a statement about the causes of things. Regular (non-causal) claims are considered to be any declarative statement. While the regular claim can simply be made about anything as long as it is a declaration, causal statements require a certain sense of cause and effect. Causal claims examine the complex processes in which people, forces, events, and other things interact to cause certain phenomena. Causal claims rarely are proven due to the different things that may happen to cause things.
Feedback: I agree with the answer because causal claims are definitively hard to prove. It depends on how you look at the event in question. Impartiality is a virtue when exploring causal claims and is often hard to keep when personally involved in the matter.
A real life example of common thread reasoning in advertising is Listerine. Listerine is a mouthwash that claims to kill more germs than any other leading mouthwash. In actuality, mouthwash does not actually kill germs and the rate of germs killed does not meet FDA standards for antiseptics. The common thread would be that all mouthwashes claim to kill germs and they really do not. Most of them also claim they are antiseptics when they do not meet current FDA standards.
Feedback: Listerine is a mouthwash which makes false claims as does many mouthwash companies. The common theme among these companies is their determination to market a product with falsehoods. If all of these companies make false claim, then what are they to be called?