I'd bet I'm in a minority among scavengers here, but if it's in the trash, a dumpster,
leaning against some cans, or in a can then it’s fair game. Anything that's locked up or
not obviously discarded in the trash is still someone else’s property and it’s hands off for
me.

Of course there are grey areas like what you guys are talking about, and I most likely wouldn't blame you for going ahead and taking the bike, but for me personally it would still be hands off if it's locked up, even if it's getting picked apart by thieves.