The situation is rather different from your hypothetical offer to dump stuff at users addresses.
But I might be picking it up again in a couple of days.
This would be more like leaving your car outside over night.
When you park up your car for the night, does it leave a large patch of filth behind or run the risk of damage to the tarmac?
It’s not dumping it’s temporary placement.
But absolutely no-one on this thread knew for sure whether it was a “temporary placement” or not until the grabber turned up. The conclusion-jumping was equally invalid as which side of the discussion happened to be doing it.