I think (2) is an issue with Unicode specifically. They should have specified Turkish alphabet to use ı and a diacritic to make the dotted one. That would have made (in this case) capitalization locale-independent.
While that's a problem with Unicode, it's a really big problem with Unicode. As the name alludes to, Unicode preserved as much as possible of existing regional encodings, which is why (among other reasons) there's a pre-composed version of basically every accented Latin letter.
isn't this solving the wrong side of the problem? how about not having to think about such things at all and just accepting that uppercase/lowercase conversion is never going to be language agnostic.
thats futureproof and powerful, rather than extra thinking and work...
Most likely case-changes need to be locale-aware, that is true. But still I think minimizing number of locale-specifics is a reasonable goal and in that light I dislike the common usage of turkish i as a example because it is such a obviously fixable (if legacy stuff wasn't concern) flaw in Unicode rather than fundamental issue.
