More than the millionth, I'm sure. If you know your input doesn't have commas (for example, because you generated it) and the code is throwaway, then splitting on comma is fine.

But, yeah, I prefer tab delimited, since "no commas" is painful, and data that contains quotes leads to scenarios where the crappy CSV I generated can't be parsed by RFC 4180 parsers.

yeah the "CSV is fine" bit scared me. people think they know what everyone is doing and why; in reality (where these problems actually need to be solved) no one knows.