Heck, I'd love if all encounters scaled based on level.
Strong 'no' on this. A big part of playing an RPG is knowing what you can do, when you can do it, and avoiding encounters that may be too much for you to handle and coming back to them later. Furthermore, it is nice to occasionally be able to beat an encounter that you are not supposed to be able to beat at your level. Similarly, it is also nice to sometimes be able to wipe the floor with your enemies because you are now over-leveled for that encounter.
