You should run a poll along the lines of "Does inappropriately displaying an ///M badge make you think I'm a tosser?" Yes or No"
Then you would see what % of BMW owners think. I reckon about 70% would say "Yes"
Personally I would not want to drive around in a car that marked me out thus in the minds of 70% of other BMW enthusiasts.
There's no chance of you scratching the paint by removing the ///M badge, if you follow the usual instructions on here of using floss and then gently teasing off the sticky residue.