Common CSV parsers don't require it and I've seen plenty of examples of unquoted CSV cells (which, given there's no actual standard for the format, isn't too surprising). Hell I've created my fair share while throwing together ad hoc datasets. The idea that some of these dumps might be made by folks who are too careless to properly quote and escape their CSV data isn't hard to believe at all.
Common CSV parsers don't require it and I've seen plenty of examples of unquoted CSV cells (which, given there's no actual standard for the format, isn't too surprising). Hell I've created my fair share while throwing together ad hoc datasets. The idea that some of these dumps might be made by folks who are too careless to properly quote and escape their CSV data isn't hard to believe at all.
There actually is a standard, it's just no one cares.
Oh, so it's like USB cords. Or basically any other technology standard.
Someone never disappoints by linking this one.
A classic example of naive CSV encoding is joining a bunch of floats with commas while using a locale that has a comma for a decimal point.
I had a dota2 bug where all of the maps particle effects would spawn in the middle. Yep, a locale dot/comma thing.