@ Harvnation - That post has now been edited to provide more clarity.
Yes, you do have the same posting rights. You are more than welcome to post what you believe are the current price ranges, without having to mention that it conflicts with the prices others have posted. Anyone using the thread for price research will see that the ranges don't agree and can make up their own minds as to which ranges they think are more accurate.
If you do decide to point out a conflict, just make sure that you are following your own advice to "post criticism in a way as to not direct it at certain players, but rather address it so community can view it impartially."