It is sadly extremely common for people to dump their broken or other unwanted goods on the side of the road or a street corner. This is especially true for large items. People do it because they are either too lazy to dispose of them properly (taking them to the dump or scheduling bulk trash pickup) or too cheap to pay for it (you have to pay to dispose of trash at the dump and some places charge for bulk trash pickup).

It's shitty, trashy behavior which taxpayers end up paying for because the city or county will have to send someone to dispose of the garbage.

I wish people in my city would stop doing it. We've got transfer stations (the dump) strategically located throughout the city so that it's never that hard to get to one, and people still dump their trash on the side of the road.