If you're talking about who I think you're talking about (name begins with "V" and ends with "e"; PM me if you want the name), they just got religion; the last time I looked (today, 7/29/14 at 11:58 PM), they had changed the relevant web page to state they had made the decision to go diacetyl-free. They go on to say that even though they still maintain that the trace amounts of diacetyl were too low to make an impact, they'd rather be safe than sorry. (Hmmm... wonder how they know it's only "trace amounts," and how do they define "trace"?)
I had some time ago actually made an entry in my Evernote file specifically reminding me that they knew some of their juices had diacetyl in them. Seemed pretty ironic that a company selling organic juices talked about knowing there was diacetyl in some of their juices. (At least they marked the juices in question as having "trace" amounts of diacetyl.) In any case, I intend to leave the warning to myself I put in Evernote some time ago reminding me that they knew there was diacetyl in some of their juices.
Interesting. I know exactly who you are talking about and always liked that they gave the customer the option.