Thanks for all the great feedback! I guess the wiki needs updating/clarifying re: the penalty for junction nodes. (Not news, I know. The wiki alone is a pretty mammoth job. And there is no Add-ons tool....)
There are two spots immediately coming to mind, which are definitely not end-of-drive. Dunno about the old data thing, but I think you may be right (again) about the lack of actual User Reports, ottonomy. Good point. It does sometimes seem as though the automated Map Problems come out in batches, maybe there's a cache and the problem's still being held after the problem is solved, hence the broken display in your example, but I would doubt that.
Here's a permalink I've created for one of the usual suspects (though there's no Issue at the moment). Northbound La Cienega to Eastbound Santa Monica and I've actually seen all of these segments as Waze generated suggestion, with the user drives continuing on past on Santa Monica. Again, I suspect this usually happens at rush hour, and this whole area gets pretty busy and the route may be faster, but it's a parking lot road, fer cryin' out loud....https://www.waze.com/editor/?lon=-118.3 ... 2,61655529
I have seen this one show up at least twice, perhaps as many as four times over a substantial length of time, without an evident problem on the map.
And, davipt, I don't think anyone responded to you; if I understand you correctly, these are not residential streets, but small access roads running parallel to main streets, usually, but not always, behind businesses. They're not meant for regular traffic, but access to rear entrances or parking lots, sometimes parking under/behind apartment buildings or even houses with a garage in the rear. Thanks for the ideas.
OK, here's another one that's live right now, and I know I've seen it quite some time ago. The difficult left turn out of the alley on to Cahuenga is even Disallowed! https://www.waze.com/editor/?lon=-118.3 ... 0,62193649