I've been involved in a situation like this myself, though I did refuse as soon as the "request" was made and did not wait until being fined before objecting.
Same arguments with regard to insisting that if people wanted my food they needed to put up buy orders.
As it is, I then set up an auto sell offer when my stocks got too high that is available to anyone. If the people within my own realm really wanted food they could put up but requests - I have fulfilled many, but still the auto sell went into place at times...
