City clean up day, is like a swap meet in all the towns around here. There are a whole lot of people that take the day (or 2, lol) off work to go drive around the city that is having clean up day.
They take his junk, he takes their junk, she takes his junk...
I was going to grab an early 80's Schwinn 10 speed down the street (because it had a Sting headset on it...Continental???) last fall. But I didn't want to deal with the rest of it. The next day, I saw the local strange-o trying to lash it to his orange safety vest or something, to carry it home while riding his giraffe bike. A few days later he had his high rise bars on it, and 3 foot long seat post on it, (The dude's like 10 feet tall, lol) and he was towing a new kiddie trailer he must have found, which was also full of stuff.
Around here, people start putting stuff out on the curb a couple of weeks early, in hopes that it
will go away, and get used, before the clean up guys get it.
City clean up day (week)

, is fair game in my book. (But the way you wrote it, sounded kind of shady.)
My kid's favorite bike is from one of those cleanup days. A friend of mine grabbed it and brought it over. A 90's Gary Fisher F/F/Bars. I dolled it up with an OA bath, and some polish, added some cool parts to it, and let him take it to his Mom's house (since she clearly won't buy him a good one). ...He has a Red Line, and an 05 Sting, both loaded. His favorite bike? The one that came out of the trash....Duh....