There is a difference between information asymmetry existing and deliberately creating one. I don't think anyone should be allowed to use their market position

There is a difference between information asymmetry existing and deliberately creating one. I don't think anyone should be allowed to use their market position to do that. With regards to typical retail, I think that's a bit of a wonky analogy as it's not a competitor in this case, it's the company themselves. That being said, things like that have been done. Not exactly the same but in the same spirit is printing the "retail price" on the box to prevent 3rd party sellers from just charging whatever they want.