The latter I think makes sense (disallowing characters like *, for example). We have a reasonable concept of special characters (just look at the top 5 used she

The latter I think makes sense (disallowing characters like *, for example). We have a reasonable concept of special characters (just look at the top 5 used shells or something). The former I'm not so sure. It's very 'ascii-centric', for lack of a better term. I think in order for that to make sense you'd need to disable UTF8 filenames entirely; the filesystem doesn't know, or care, that there's a relationship between a and A and any number of other Unicode variants, and why should it?