I feel bad for all the sorters that have to sift through trash, who know most of the stuff will just get thrown in the landfill. Some people treat the recycle bin as a second trash can.
But yeah, it's nasty when you look in the big recycle dumpsters we have here and see the things people throw in there.
There's no real punishment for missorting recycling, but I guess it's hard to prove who did what when trash collection is the way it is.