This is what you guys answer? It's there because you can dull the blade if you brush the edge with the cloth. People used to wipe carbon blades dry or they would rust and oxidize, dulling the blade faster. With stainless, it's not necessary, hence the warning. Have you ever seen "Do not wipe blade" on a carbon blade? I haven't.
It is categorically untrue that wiping a blade dulls it.
Though wiping a blade incorrectly may dull it.
Carbon blades were all the rage 60 years ago. If someone 60 years ago brought a lawsuit because they cut themselves by wiping a razor blade, they would have been laughed out of the county.
We have become so litigious that stupid warnings abound everywhere. Razor Blades are certainly not the exception!!