[paulfitz]

Escaping is needed no matter what separators are used, but if a character from the astral plane is always present (like U+1F4A9 PILE OF POO) then you can be pretty sure the software is handling unicode well and isn't corrupting cells without you noticing.

So true about RFC4180. Admittedly this post kind of got out a little early, support for the format was slated for the first of next month...