Quote Originally Posted by tpeck View Post
But in the case of filenames that are accepted by the OS, it doesn't prevent commercial software from functioning.
Sure it does.. Try using one of the special characters Microsoft forbids in a Microsoft Word document, and let me know what error message you get.

Quote Originally Posted by tpeck View Post
No-one is asking you or anyone else to fix this immediately or ever if that's your decision - we are debating whether it's a worthy thing to do. If you tried to sell this product in the marketplace and an error popped up without even an error code, it would get the kind of commercial reception it deserves.
On the contrary.. Microsoft is doing just fine. Microsoft Office still doesn't allow certain special characters in their filenames..

Quote Originally Posted by tpeck View Post
BTW agreeing to disagree doesn't mean that all the ideas have been floated in a debate.
I haven't seen any new ideas floated.. So at this point I still respectfully still disagree with your viewpoint on this matter.