Congrats on your decison. It is definitely not crazy, it is very very smart but requires a high level of bravery!

You will hold yourself to a new level of honesty where you judge your results based on more important things - do these pants really fit better? Do i really feel better?

Oh - and maybe rather then do away with the scale entirely you allow yourself to weigh every month or two. It will probably confirm what you already knew (diet working), and can be good encouragement!

Good luck! I admire your bravery!