I am annoyed that comma won out as the separator. Tab would have been a massively better choice. Especially for those of us who have discovered and embraced elastic tabstops. Any slightly large CSV is unreadable and uneditable because you can't easily see where the commas are, but with tabs and elastic tabstops, the whole thing is displayed as a nice table.

(That is, of course, assuming the file doesn't contain newlines or other tabs inside of fields. The format should use \t \n etc for those. What a missed opportunity.)