Based on the kinds of things that get dumped here, it's not poor people dumping all the time. I know some of it is people that live here, but there's been two expensive zinc galvanized trailers dumped here recently. They have some minor problems, probably could be easily fixed. They are the sorts of things people round here would either keep or wouldn't have room for in the first place.I doubt wealthy or middle-class people are dumping rubbish in your neighborhood. More likely, it is low-income people doing it. My opinion is based on lifelong observation of the poor doing this in my country. They do not care about others or care that the roadsides are littered with their garbage. Poverty does not justify a callous attitude toward others and society at large.
There's patio sets and furniture dumped often. It's either people doing it themselves, or they've paid some random in a white van to take it away without checking if they a reputable.
I've overheard a conversation where someone has proudly proclaimed "Oh I just dump crap like that in [certain street], I'm doing them a favour as people like that love it, they sell it for scrap, the 'rag and bone man' will go down there anyway."
Whether they are personally dumping it or not, it's our neighbourhood that has to deal with it. It's bad enough that we have a few lazy people living round here. The irony is that we are only a 5 minute drive away from the local rubbish tip.