The bins have been already been removed from the platforms in DC (after 9/11), and the system actually stays quite clean, most of the year, at least. Of course, tourist season is another story. I have to wonder whether this latest incident would have happened some other month when we weren't inundated with people who ignore whatever rules they feel like. I know I'm much more likely to strangle a fellow passenger in July than March; I'm sure the transit cops are equally frustrated.
Of course, that doesn't excuse the idiocy of this incident. But think about it -- this is three idiotic incidents, spread over a few years. And how many people ride the Metro every year? The transit cop in this case needs to be whapped upside the head with a large fish, but overall I think they're doing a pretty good job. (The transit cops, that is, not the Metro administration in general. Robert Smith needs to be locked in a typical small Ride-On bus with no shocks, no air conditioning, too few seats, and 30 sweaty people and driven over potholes until he comes to his senses and realizes that Maryland should support Metro because Metro supports Marylanders. Errr...rant off.)
Anyway.... I have to speak up in favor of the no-eating rules. And yes, I have been warned once for eating on an outdoor platform, when I thought the rules only applied to the Metro cars themselves. It's hard enough just finding room for the people on the Red Line -- I really don't want to have to share the space with all the dropped water bottles, soda cups, candy wrappers, fast food bags, used gum, etc. And this is DC, after all. We're supposed to have a reputation. Hard to be a shining star for all the visitors when the subway cars are mobile trash bins.