Did anyone have any experience with submitting and selling food images on Stockfood.com?
Thanks in advance for any info.

Inquired a long, long time ago, after i started with istock. My intent was to shoot food shots specifically for stockfood and put other non-food shots on istock. They told me i couldnt have anything on microstock. I didnt think they had the right to do that, so it never went any further for me.

I don't have any experience with them

Would you tell us about yours

Thanks everyone - some info at least. I also got information directly from one of the contributors, she is a famous food blogger and has a small number of files with them. Stock is not her business, but she said she does get some sales here and there.
About traffic - I suspect this kind of agencies don't rely on web traffic to make their sales. Rather, they have traditional working relationships with publishing industry, more like old time stock agencies. You don't cater to wide audience with exclusive and right-managed content.
Forbidding to sell anything on microstock is silly. A photographer can produce very different content for different markets. It's like telling a car maker they should only make luxury cars and never produce a cheaper more affordable model. I hope they got over it:)

FYI -  they also sell on Getty RM

Ah - so they can be just a middleman then. Taking part of sales because they have a "backdoor" to Getty. That would be less cool.