I've read that frequently too, but I know that we have found full sealed food items in our villas when we have checked in before, so just in case, we leave any unopened food. We don't usually drive, so don't want to go out to the parking lot to find someone to give it to, and I don't think
DVC would like it if the front check-in area started looking like an open-air marketplace with departing guests hawking their wares!

I do like the idea of giving out any cold water bottles to landscaping since that must really be a bear of a job in that heat and humidity most of the year!