«Word joiner shoul be ignored in contexts other than word or line breaking». Can I use word joiner and zero-width space for casing control? E.g. "camelcased" ZWJ+d+a+ZWS+V+i+n+c+i will ever be "daVinci", not "DaVinci" nor "Davinci", when titlecasing will be implemented. I ask because some applications need automatical titlecasing, but not ever it is advisable. In Wikipedia you can create article "IPhone" and never "iPhone", something like that.
