Not sure is anyone here on forums looking for more places to fix in OSM (rather than having list long enough to last for next 120 years).
But in case someone is looking for areas that can be remotely fixed I may throw few:
EDIT this specific problem is now fixed, see below for unfixed one Note: 4678514 | OpenStreetMap
(even just deleting all this landcover would be step toward better data)
Note: 4756625 | OpenStreetMap - area where many buildings are mapped as landuse=residential
(in unlikely case of people actually looking for more things to fix - what you are looking for? I likely can share something from my TODO list - posting all of it here would be pointless but if people are actually looking for something…)
in both cases I fixed some, put on my TODO list to finish it but I see that I will not get to it before 2050 at the current rate. So if anyone is interested, feel free to fix mapping there!