There was a man in my area who did that. It took two mail trucks to deliver it all and he had it filling a shed behind his house. I don't know how the postal service finally got him to quit.
If I had a stove like that I'd sign up for junk mail everywhere. That way I wouldn't have to be burdened with the work of carrying it all the way home.
Oh no! I'm beginning to think like Wally. Maybe I'm spending too much time on this site.